British Aerospace BAE-146 incident near Unalaska, Alaska, May 12, 1984
On May 12, 1984 at about 1:45 am local time, a British Aerospace BAE-146, registered N146AP, suffered minor damage in an incident near Unalaska, Alaska (Unalaska airport). It was a flight of an unrecorded kind under scheduled airline rules (Part 121). No one was hurt; 7 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this incident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 12, 1984 · about 1:45 am local time
- Place
- Unalaska, Alaska · Unalaska · map
- Type
- Incident
- Injuries
- No one was hurt; 7 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- British Aerospace BAE-146 · all BAE-146s on the register
- Registration
- N146AP · registry record · serial E1013
- Damage
- Minor damage
- Flight
- Flight of an unrecorded kind · scheduled airline rules (Part 121)
The NTSB's narrative final · quoted from the NTSB record
A 'NO BRAKE CONDITION' WAS EXPERIENCED WHILE THE PLT WAS USING THE YELLOW BRAKE SYS DURING A LANDING. THE NORMAL LANDING PROCEDURE CALLS FOR USING THE GREEN SYS. DURING THE ROLL-OUT, THE PLT SELECTED THE EMERGENCY YELLOW SYS & SUBSEQUENTLY LOCKED THE BRAKES. HE STATED THAT THE YELLOW HYDRAULIC SYS WAS USED BECAUSE OF A PROBLEM WITH THE GREEN SYS ON THE PREVIOUS DAY. ALSO, HE REPORTED THAT MANAGEMENT HAD DECIDED TO USE THE YELLOW SYS. THE SPECIFIC LEVEL OF MANAGEMENT THAT HAD REPORTEDLY MADE THIS DECISION WAS NOT IDENTIFIED.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 26,000 hours in all; 100 in this make and model
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: rgt
The aircraft
- Airframe total time: 240 hours
- Last inspection: inspection type not recorded, May 10, 1984; 43 hours since
- Maximum gross weight: 82,250 lb
- Seats: 93
- Landing gear: retractable
- Engine: Lycoming ALF 502 R-5 (turbofan); 0 hours total
- Operator: Air Pac
The flight
- Departed from: ADK Adak AK
- Destination: DUT Unalaska AK
- Flight plan: IFR
- Runway 30, 3,900 ft by 100 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 300° at 5 knots
- Visibility: 7 statute miles
- Sky: overcast at 1,000 ft; not recorded
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 6 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N146AP the same tail number, which may have belonged to a different aircraft at the time
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.