# Accident 19961113035289A: Hughes 369D, Hana, HI, November 13, 1996

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: November 13, 1996, 14:50 local time
- Place: Hana, HI
- Damage: Substantial damage
- Phase of flight: Normal Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: DNWA
- Location: 20.7700° N, 155.9907° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=20.7700&lon=-155.9907&mi=10
- Aircraft: N8625F, a cancelled registration (https://openairdocs.org/deregistered/N8625F-2017-06-15) (OpenAirDocs)
- Registry model: Hughes Helicopters HUGHES 369D (registry code 4470706, https://openairdocs.org/model/hughes-helicopters-hughes-369d) (OpenAirDocs)
- Registry engine: Allison 250 SER 250HP (registry code 03002, https://openairdocs.org/engine/allison-250-ser-250hp) (OpenAirDocs)
- Reported make and model: HUGHES 369D
- Reported engine: ALLSN 250C20B
- People aboard: 5
- Fatal injuries: 0
- Pilot flight hours: 5,350 total, 3,700 in this make and model, 260 in the last 90 days
- NTSB investigation: [NTSB LAX97LA039](https://openairdocs.org/ntsb/LAX97LA039) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19961113035289A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ENGINE LOUD EXPLOSION AT CRUISE. AUTORATED. ROLLED OVER. SPUR ADAPTER SAG FRACTURED. SB ON SAG. NOT DONE. SAG SHIFT

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX97LA039](https://openairdocs.org/ntsb/LAX97LA039), Nov 13, 1996: McDonnell Douglas 369D (N8625F), Hana, HI, substantial damage. Probable cause: subsequent failure of the spur adapter gearshaft (SAG), after 'retaining ring to compressor impeller machining' occurred and allowed the SAG to shift aft. The mechanism which induced the ring to…

## Other reports on N8625F (3)

Matched to the same aircraft by N-number and date.

- [Incident 19960411011749I](https://openairdocs.org/incident/19960411011749I), Apr 11, 1996: Hughes 369D (N8625F), Kahului, HI, Minor damage. Narrative: pilot stated after second tour of the day, he felt landing was normal. He rolled the throttle to ground idle. For pax unloading, the a/c shuddered…
- [Incident 19920912050799I](https://openairdocs.org/incident/19920912050799I), Sep 12, 1992: Hughes 369D (N8625F), Honolulu, HI. A bolt in a shackle sheared while lifting 500 lbs battery. Load fell in a remote area of airport.
- [Incident 19790302010519I](https://openairdocs.org/incident/19790302010519I), Mar 2, 1979: Hughes 369D (N8625F), Los Angeles, CA. Engine power surges before landing. Unable to duplicate engine problem on ground.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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