Cessna 172XP N736LB
21 July 1996 · Kenai, Alaska, United States · No injuries
Summary
On 21 July 1996 at about 22:30 local time, a Cessna 172XP registered N736LB was involved in an accident near Kenai, Alaska, United States. One person was 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 22:30
- Classification
- Accident
- Location
- Kenai, Alaska, United States
- Coordinates
- 60.6603, -150.9009
- Aircraft
- Cessna 172XP
- Registration
- N736LB
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- King Salmon → Anchorage
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- ANC96LA103
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
The loss of engine power due to seized piston connecting rod bearings, and subsequent failure of the piston connecting rod cap and fracture of the piston connecting rod. A factor associated with the accident was the rough and uneven emergency landing site.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot was exiting a mountain pass when the airplane's engine suddenly lost all power. His attempts at restarting the engine were unsuccessful, and he made an emergency landing on a rough gravel bar. During the engine examination, the #2 cylinder piston connecting rod was found fractured and separated from the crankshaft. The #2 piston connecting rod cap and cap bolts were also fractured and separated from the crankshaft. The #2 piston connecting rod journal was rough and abraded. The piston connecting rod cap bolts had fractured about mid span, and the fracture ends were stretched and necked down. The castellated nuts used to secure the rod cap were found still attached to their respective rod cap bolts. No other mechanical anomalies were discovered during the engine examination. The mechanic who recovered the airplane from the accident site indicated that he drained at least 6 quarts of oil from the engine prior to the recovery.
Quoted verbatim from the NTSB record.
Other Cessna 172 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 14 Mar 1996 | Cessna 172L | Napa, California, United States | - | No injuries | - |
| 22 Mar 1996 | Cessna 172N | New Smyrna Bch, Florida, United States | - | No injuries | - |
| 9 Aug 1996 | Cessna 172N | Enumclaw, Washington, United States | Aeroflight | Minor injuries | - |
| 7 Oct 1996 | Cessna 172C | Mesa, Arizona, United States | - | No injuries | - |
| 14 Jul 1996 | Cessna 172 | Frederick, Maryland, United States | - | No injuries | - |
| 19 Jul 1996 | Cessna 172M | Tremont City, Ohio, United States | MAD River Airport, Inc. | No injuries | - |
All 12,209 records for this type
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Apr 1996 | Piper PA-28 | Wasilla, Alaska, United States | - | No injuries | - |
| 13 Apr 1996 | Piper PA-11 | Paxson, Alaska, United States | Mark W. Barkdull | No injuries | - |
| 24 Apr 1996 | Piper PA-14 | Anchorage, Alaska, United States | David Calkins | No injuries | - |
| 27 Apr 1996 | Piper PA-18 | Kotzebue, Alaska, United States | - | No injuries | - |
| 27 Apr 1996 | Cessna 180H | Palmer, Alaska, United States | Richard Greeno | No injuries | - |
| 28 Apr 1996 | Piper PA-18 | Kasilof, Alaska, United States | Paul G. Isaak | No injuries | - |