LAX06LA185 · Diamond Aircraft Industries HK 36 TTC
Diamond Aircraft Industries HK 36 TTC · Accident: loss of engine power on approach
From Payson Airport (PAN) to Pattani Airport (PAN)
Event
- NTSB case
- LAX06LA185
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Diamond Aircraft Industries HK 36 TTC
- Aircraft type
- Diamond HK-36
- Category
- Glider
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N637TT
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Payson Airport (PAN), Payson, AZTo Pattani Airport (PAN)
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Approach · VFR pattern downwind
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of engine power
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Reason for occurrence undetermined
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The powered glider was in the traffic pattern for landing. On the downwind, the pilot applied power from an idle setting to full power but the engine did not respond. The pilot did not believe that a safe landing could be made straight ahead due to a residential area. He turned the glider back toward the runway, and in the turn, the glider lost just enough altitude for the left wing tip to contact the ground. The glider pivoted around the wing tip and came to rest upright. An FAA airworthiness inspector examined the engine and found no mechanical anomalies that would have precluded normal operation. Impact related damage to the engine precluded a test run. The FAA inspector also indicated that there was 10 gallons of fuel on board the glider.
Probable cause
partial loss of engine power for undetermined reasons.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX06LA185
- Event ID
- 20060602X00673
- Case number
- LAX06LA185
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: local date, investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2006-05-29.
- API snapshot SHA-256: fee4f23213a5027f1d879f63bdbca25ddc7cc10f4f25f60d29954a6eaef11afd; retrieved 2026-09-22T04:51:26.590Z.