Amateur-built MA-1B accident near Pahala, Hawaii, August 13, 1987
On August 13, 1987 at about 6:26 pm local time, a amateur-built MA-1B (helicopter), registered N9924M, was substantially damaged in an accident near Pahala, Hawaii (Duster Strip airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was 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 accident. 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
- August 13, 1987 · about 6:26 pm local time
- Place
- Pahala, Hawaii · Duster Strip · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built MA-1B
- Registration
- N9924M · no longer on the register · serial 024
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
DURING AN AERIAL APPLICATION OPERATION, WHILE TAKING OFF, THE AIRCRAFT VEERED OFF THE RUNWAY AND CAME TO REST NOSE DOWN. INSPECTION OF THE LANDING GEAR REVEALED THAT THE LEFT MAIN LANDING GEAR SCISSOR BOLT BROKE.
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: commercial pilot
- Ratings: multi-engine land; single-engine land; single-engine sea
- Flight time: 6,550 hours in all; 24,000 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 3,547 hours
- Last inspection: 100-hour inspection, July 18, 1987; 24 hours since
- Maximum gross weight: 6,250 lb
- Seats: 1
- Landing gear: fixed
- Engine: Wright R-1820-202A (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 15 statute miles
- Sky: scat at 2,000 ft
- Temperature: 64°F (18°C), dew point 50°F (10°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 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 N9924M 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.