ASN Wikibase Occurrence # 156623
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Saturday 15 June 2013 |
| Time: | 09:47 |
| Type: |  Aero Commander 685 |
| Owner/operator: | Private |
| Registration: | N74CP |
| MSN: | 12061 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 3484 hours |
| Engine model: | Continental GTSIO-520-K1B |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Victoria Regional Airport - KVCT, Victoria, TX -
 United States of America
|
| Phase: | Take off |
| Nature: | Executive |
| Departure airport: | Victoria Region, TX (KVCT) |
| Victoria Region, TX (KVCT) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Two days before the accident, both engines lost power after takeoff. The pilot returned to the airport and landed the airplane uneventfully. Maintenance personnel were unable to determine the cause of the engines' power loss. Both engine wastegates were removed and bench tested, and they operated normally. Ground, high-speed taxi, and flight tests were conducted with no discrepancies noted. Earlier on the day of the accident, the airplane had been flown for an uneventful 45-minute flight. However, during takeoff for the accident flight, both engines lost power, and the pilot made a forced landing in a field. Disassembly of the left engine revealed that the idler pin was unsecured and that no nuts were present on either of the two bolt studs. The bolt studs were worn and stripped of threads near the base, consistent with being worn by the free movement of the idler pin. The engine casting where the idler pin was installed was fractured. The crankshaft, camshaft, starter drive, and starter adapter gear teeth were stripped, and metal fragments were noted in the oil screen and sump. The right engine was functionally tested and operated satisfactorily at all power settings. Based on the evidence found during the left engine examinations, it is likely that a catastrophic left engine failure occurred during the accident flight due to an unsecured idler pin.
Probable Cause: Maintenance personnel's failure to secure the left engine idler pin during overhaul, which resulted in a catastrophic engine failure and subsequent forced landing.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=74CP
https://flightaware.com/live/flight/N74CP
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Jun-2013 00:09 | Geno | Added |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 08:45 | ASN Update Bot | Updated [Operator, Nature, Departure airport, Destination airport, Source, Narrative] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation