Air India pilot drug screens hit 1 percent non-negative rate

Two more Air India pilots have been grounded after non-negative initial dope tests among the first 300 to 400 screened since 13 August, lifting the early positive rate to roughly one percent and prompting the Federation of Indian Pilots to demand pre-flight saliva swabs.

Confirmatory laboratory results are still pending. The airline and its Express unit are screening nearly 5,000 cockpit crew after the captain of Phuket-Delhi flight AI 2379 tested positive for marijuana following a sudden 300-foot altitude drop on 4 August that injured passengers and crew.

The early tally has already shifted the debate from a single-incident response to a wider fitness-for-duty question. Each non-negative result removes a pilot from the roster until the lab speaks, and the Federation wants a method that can clear or stop a crew member before pushback rather than after landing.

Three non-negatives in the first wave of screens

Air India began the mandatory group-wide checks after the AI 2379 captain’s urine samples returned positive for marijuana in both screening and confirmatory stages. The expanded programme covers substances and medications barred under regulations and runs at the Gurugram academy, briefing centres and offices.

A source told The New Indian Express that between 300 and 400 pilots had been screened by mid-August and two more returned non-negative results. Non-negative means traces appeared on the sensitive initial screen; only the lab confirmatory test can declare a true positive. Those two pilots were de-rostered immediately, the same step taken with the original captain and co-pilot.

Captain C. S. Randhawa, president of the Federation of Indian Pilots, put the early tally at three out of roughly 300 tested. “This is very high and strict action is required, and saliva testing is recommended,” he said.

• Screened so far: 300-400 pilots
• Non-negative or positive: three (about 1 %)
• Total cockpit crew targeted: nearly 5,000 across Air India and Air India Express
• Confirmatory turnaround: typically 24-48 hours

Air India declined to give further details on sample types, pilot status or the nature of the confirmatory tests.

Until those lab reports arrive, the three cases remain in different legal and operational states. The original captain already faces a confirmed positive. The two later pilots sit in the narrower non-negative category, grounded on precaution while chromatography either upholds or clears the initial trace. That gap between a sensitive screen and a specific lab result is why the airline and the Federation are talking past each other on how urgent the one percent figure really is.

Why urine checks leave a gap before every flight

Existing Directorate General of Civil Aviation rules require random testing of at least 10 percent of flight crew each year for psychoactive substances, usually via urine. Breath-analyser checks for alcohol already happen before and after flights. Drug screens have historically been random or post-incident rather than routine gate-side tools.

That design means a pilot can operate a sector with residual substances that a later urine test might catch only after landing. A cabin-crew complaint allegedly pointing to earlier marijuana use on the Phuket sector helped trigger the original tests, but the system still relies on after-the-fact detection.

Aviation safety consultant Captain Mohan Ranganathan noted the practical rule: pilots stay grounded until confirmatory results arrive. The delay is deliberate for accuracy, yet it leaves the roster short while labs work and does nothing to stop a positive pilot from starting the next duty day.

Alcohol policy already closes that window with pre-flight breath checks. Drug policy does not. The random annual sample and the post-incident urine test both answer a different question from the one a dispatcher needs at sign-on: is this crew member clear to operate the sector about to depart. Air India’s full-group programme raises the volume of tests, yet it still uses a method built for later confirmation rather than gate-side clearance.

Randhawa’s letter pushes 15-minute saliva swabs

On Monday Randhawa wrote to the DGCA and the Civil Aviation Secretary calling for swab (saliva) testing. He pointed to Australia as the first major regulator to adopt the method for pilots.

Australia is the first country to go in for this kind of testing for its pilots. This can be done before the flight trip and the results will be out in 15 minutes. An easy and reliable result can be obtained before the flight trip commences.

Randhawa made the case after the 1 percent early rate. The Federation wants the change nationwide so results arrive before pushback rather than after a sector is flown.

The letter ties three strands already visible in the Air India episode: a confirmed marijuana result on the incident crew, two further non-negatives in the first wave, and a testing architecture that still cannot issue a same-morning drug clearance. By naming saliva and a 15-minute turnaround, the Federation is asking the regulator to borrow a tool already in airline workplaces elsewhere rather than invent a new Indian-only process.

How Australia already runs oral-fluid checks

Australia’s Civil Aviation Safety Authority uses oral fluid samples for drug testing under its drug and alcohol management rules. Testers collect saliva on the spot. A first positive triggers an immediate second screen; a second positive sends a sample to an approved lab while the person is stood down from safety-sensitive duties.

Clearance to return requires a medical review officer and, for confirmed positives, a negative confirmatory result plus any required intervention programme. Breath testing covers alcohol. The process is designed for speed at the workplace while still protecting against false positives through the two-stage and lab steps.

Indian pilots and safety voices have noted the same science gap: initial immunoassay screens are highly sensitive but less specific. Common medications, some foods and cross-reactive compounds can produce non-negative results that later lab chromatography clears. Crowds discussing the Air India cases repeatedly flagged that distinction, warning against treating every non-negative as proven impairment or the cause of the altitude drop.

The Australian sequence matters for the Indian debate because it keeps the lab step. Speed at the gate does not mean skipping confirmation. It means a pilot who fails the on-the-spot screens is removed before the flight, not after, while the laboratory still has the final word on whether the trace was real.

The Phuket Flight Still Shapes the Response

Everything now in motion traces back to one sector. On 4 August, Phuket-Delhi flight AI 2379 lost 300 feet of altitude without warning. Passengers and crew were injured. The captain later tested positive for marijuana in both screening and confirmatory urine stages. A cabin-crew complaint allegedly pointing to earlier marijuana use on that sector helped push the airline from a single-crew inquiry into a group-wide screen.

The Aircraft Accident Investigation Bureau continues its probe into the altitude loss on the A320neo. It is examining systems data, human factors and medical evidence with help from Airbus and France’s BEA. AAIB has cautioned against linking any single factor to the event while the inquiry runs.

That caution sits beside the airline’s operational choice. Air India did not wait for the final AAIB report before expanding tests to nearly 5,000 cockpit crew. The internal framing treats the full-group screen as a step beyond regulatory minimums meant to reassure passengers and stakeholders while the technical investigation proceeds on its own clock.

Former pilots speaking publicly have stressed the same separation the AAIB is guarding: a confirmed positive still requires medical review to separate therapeutic or inadvertent exposure from recreational use, and a positive test alone does not automatically prove the pilot was impaired at the controls or caused the hydraulic-related control loss described in early technical accounts of AI 2379.

1. 4 August: AI 2379 suffers a sudden 300-foot altitude drop on the Phuket-Delhi sector; passengers and crew are injured.
2. Post-incident testing: The captain’s urine samples return positive for marijuana at both screening and confirmatory stages; the co-pilot is also de-rostered.
3. 13 August onward: Air India opens mandatory group-wide checks at the Gurugram academy, briefing centres and offices, aiming to cover nearly 5,000 cockpit crew across Air India and Air India Express.
4. By mid-August: Between 300 and 400 pilots have been screened; two more return non-negative results and are grounded pending lab confirmation, lifting the early tally to three.
5. Monday: Federation of Indian Pilots president Captain C. S. Randhawa writes to the DGCA and the Civil Aviation Secretary seeking pre-flight saliva swabs with results in 15 minutes.

What the Civil Aviation Requirements already prescribe

Under the current DGCA framework a first confirmed positive for psychoactive substances sends the person to a rehabilitation and de-addiction programme. A second positive can suspend the licence for three years. A third can cancel it. Organisations must report positives to the regulator within set timelines.

The government has already ordered the DGCA to review the entire dope-test framework after the AI 2379 captain’s confirmatory result. Ministry sources said the regulator is to examine international practices and decide whether India’s protocols need strengthening. Civil Aviation Minister K. Rammohan Naidu said changes would be considered if the existing rules proved inadequate.

The ladder is built for confirmed findings, not for the grey zone of a non-negative screen. That is why the two latest Air India pilots are de-rostered rather than already enrolled in rehabilitation: the framework withholds career sanctions until the lab confirms. The same structure, however, says nothing about whether a saliva gate should exist before the first engine start.

The ministry’s order to review international practices gives the DGCA a formal route to weigh Australia’s oral-fluid model against the existing urine-led random system. Minister Naidu’s public stance leaves the door open without committing to a method. The Federation’s letter is now one of the inputs that review must answer.

Urine and Saliva Answer Different Operational Questions

The practical fight is less about chemistry than about when a result arrives. Urine randoms and post-incident checks tell an airline what a pilot carried days or hours earlier. They do not tell a captain, a dispatcher or a passenger whether the crew stepping onto this sector is clear right now. Saliva testing, as Randhawa described it and as Australia already runs it, is built for that earlier moment.

Both drug methods still need a laboratory pathway for confirmation. Australia’s model shows how that can work without giving up speed: a second on-the-spot screen, then stand-down and lab work if the second screen also flags. Indian voices stressing immunoassay limits are describing the same risk Australia manages with the two-stage design. Sensitive first screens catch traces; specific lab work decides whether those traces are real.

If the DGCA keeps urine as the sole drug tool, Air India’s nearly 5,000-crew exercise will finish as a large random and post-incident sweep. If it adds saliva, the same carriers gain a pre-flight gate that mirrors what breath testing already does for alcohol. The early one percent non-negative rate is the figure both sides are using to argue that the choice is no longer theoretical.

Roster pressure and the scale of the screening

Air India’s own transformation updates show the pilot count roughly doubled to 3300 as the group rebuilds. Adding Air India Express brings the combined cockpit strength near the 5,000 figure cited in reporting. Grounding even a small percentage creates immediate scheduling strain on a carrier still integrating fleets and crews after the Vistara merger and the earlier Ahmedabad crash scrutiny.

The airline’s internal memo framed the full-group screening as a step beyond regulatory minimums intended to reassure passengers and stakeholders. Tests run alongside training and routine briefings so the programme can finish without grounding the entire operation at once.

Former pilots speaking publicly have stressed that a confirmed positive still requires medical review to separate therapeutic or inadvertent exposure from recreational use, and that a positive test alone does not automatically prove the pilot was impaired at the controls or caused the hydraulic-related control loss described in early technical accounts of AI 2379.

At roughly one percent in the first 300 to 400 names, a straight extrapolation is tempting and unreliable. Confirmatory labs may clear some of the non-negatives. They may also uphold them. Either way, each de-rostered pilot is a pairing problem on a network still absorbing merger crews. The 24-48 hour confirmatory window multiplies that friction: the airline loses the pilot for the lab interval even when the eventual result is negative.

The protocol rewrite now sitting with the DGCA

The combination of an early 1 percent non-negative rate, the original marijuana confirmation, and the Federation’s formal letter has turned a single-carrier safety response into a national regulatory question. Saliva testing offers a practical pre-flight gate that urine randoms and post-incident checks cannot match. Australia’s operational model already shows the logistics are workable.

Whether the DGCA adopts swab testing, tightens random percentages, shortens confirmatory timelines or rewrites the rehabilitation-to-cancellation ladder will shape fitness-for-duty rules for every Indian carrier. Screening at Air India continues while confirmatory labs report and the ministry’s review proceeds.

The review now has a concrete menu drawn from facts already on the table: keep the urine-led 10 percent random floor, raise the sample rate, add oral-fluid checks before departure, compress the 24-48 hour lab wait, or adjust the three-step sanction ladder that runs from rehabilitation to three-year suspension to cancellation. Minister Naidu has said changes would be considered if existing rules proved inadequate. Randhawa’s letter argues that the early rate and the pre-flight gap already meet that test.

The next confirmed numbers, and the regulator’s response to Randhawa’s proposal, will decide how far any national change travels beyond Air India’s own programme.