Hughes 269C N1091Y
2 January 1998 · Riviera, Texas, United States · No injuries
Summary
On 2 January 1998 at about 14:30 local time, a Hughes 269C registered N1091Y was involved in an accident near Riviera, Texas, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 14:30
- Classification
- Accident
- Location
- Riviera, Texas, United States
- Coordinates
- 27.2800, -97.8097
- Aircraft
- Hughes 269C
- Registration
- N1091Y
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Other Work Use
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- FTW98LA084
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
The total loss of engine power due to a fatigue failure of the crankshaft for undetermined reason. A factor was the lack of suitable terrain for the forced landing.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
Following a total loss of engine power, during a cattle herding flight, the pilot executed an autorotation to an area confined by trees. Engine examination revealed a broken crankshaft & camshaft. The camshaft exhibited deformation consistent with overload. All four cylinder mounting flanges were fretted & all piston rings showed 'excessive' wear. The #1 & #4 cylinder top compression rings were broken. Main bearing saddle faces of the crankcase showed heavy fretting. The engine manufacturer Materials Laboratory reported the mode of fracture of the crankshaft was fatigue. The fatigue originated from the oil hole (between #3 main & #3 crankpin journals) in the cheek and near the rear fillet radius of the #3 main bearing journal. The cause of the fatigue was not determined. During the overhaul, the crankshaft received a magnaflux inspection & re-nitriding by an inspection facility. The engine was reassembled & returned to service by company maintenance personnel. The engine had 1150.6 hours since overhaul.
Quoted verbatim from the NTSB record.
Other Hughes 269 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 31 Jul 1998 | Hughes 269A | Salina, Kansas, United States | - | Serious injuries | - |
| 10 Apr 1998 | Hughes 269A | Emmett, Idaho, United States | Clark, RON. A | Fatal | 1 |
| 16 Dec 1998 | Hughes 269A | Hanceville, Alabama, United States | - | Minor injuries | - |
| 7 Aug 1998 | Hughes 269B | Uvalde, Texas, United States | - | No injuries | - |
| 22 Jan 1998 | Hughes 269C | Brackettville, Texas, United States | Gary L. Nunley | Minor injuries | - |
| 17 Aug 1998 | Hughes 269C | Houston, Texas, United States | Summit Seafood Supply | Minor injuries | - |
All 1,213 records for this type
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 9 Jan 1998 | Beechcraft V35 | Seguin, Texas, United States | - | Minor injuries | - |
| 14 Jan 1998 | Poling KELEHER LARK KR1B | Georgetown, Texas, United States | - | Fatal | 1 |
| 24 Jan 1998 | Cessna 140A | Justin, Texas, United States | - | No injuries | - |
| 24 Jul 1998 | Bell 206L-3 | Reklaw, Texas, United States | U.s. Forest Service | Minor injuries | - |
| 29 Aug 1998 | Jodel F11-3 | Beeville, Texas, United States | - | Fatal | 2 |
| 29 Aug 1998 | Piper PA-28-235 | Mineola, Texas, United States | - | No injuries | - |