Maule M-5 accident near Nebesna Glacier, Alaska, August 10, 1989
On August 10, 1989 at about 1:30 am local time, a Maule M-5, registered N5644W, was substantially damaged in an accident near Nebesna Glacier, Alaska. It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE PILOT ALLOWED THE AIRCRAFT TO INADVERTENTLY TOUCH DOWN, HE DELAYED MAKING A GO-AROUND, AND HE DID NOT MAINTAIN SUFFICIENT SPEED TO CONTINUE THE GO-AROUND. CONTRIBUTING FACTORS WERE: THE PILOT'S SELECTION OF UNSUITABLE TERRAIN, HIGH VEGETATION IN THE SELECTED LANDING AREA, A DOWNDRAFT, AND ROUGH TERRAIN IN THE DRY RIVER BED.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 10, 1989 · about 1:30 am local time
- Place
- Nebesna Glacier, Alaska
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Maule M-5 · all M-5s on the register
- Registration
- N5644W · registry record · serial 7350C
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PLT WAS ON A FLT TO THE NEBESNA GLACIER AREA TO GO HUNTING. HE FOUND WHAT LOOKED LIKE A CHOICE SITE TO LAND FROM WHERE HE PLANNED TO HIKE. HIS 1ST APCH TO LAND WAS LONG, SO HE MADE A GO-AROUND. HIS 2ND APCH WAS ALSO LONG, BUT THIS TIME, THE ACFT TOUCHED DOWN & THE WHEELS CAUGHT SOME LOW SHRUBS, SLOWING THE ACFT. THE PLT STATED HE 'ADDED FULL POWER FOR GO-AROUND, STRUGGLED INTO THE AIR WITH FULL FLAPS, AND TURNED TOWARD LOWER TERRAIN' WHICH WAS DOWN WIND. HE SAID THE ACFT ENCOUNTERED A DOWNDRAFT & WAS 'PUSHED' INTO A DRY RIVER BED. HE STATED THAT HE MADE A CONTROLLED LANDING ABOUT 1/2 MI FROM THE INTENDED LANDING AREA, BUT THE TERRAIN WAS TOO ROUGH & THE LANDING GEAR BROKE OFF.
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; single-engine sea; instrument: airplane; instrument: helicopter; rotorcraft: helicopter
- Flight time: 3,528 hours in all; 80 in this make and model; 125 in the last 90 days; 50 in the last 30 days; 2,200 as pilot in command; 400 on instruments
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 2,500 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming IO-540 (piston); 0 hours total
The flight
- Departed from: ORT Northway AK at 7:00 pm
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 210° at 10 knots, gusting 15
- Visibility: 60 statute miles
- Sky: clear
- Temperature: 70°F (21°C), dew point 0°F (-18°C)
- Altimeter: 30.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| 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 N5644W 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.