ASN Wikibase Occurrence # 309956
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| Date: | Monday 20 March 2017 |
| Time: | 16:46 LT |
| Type: |  Cessna 172RG |
| Owner/operator: | Private |
| Registration: | N6402V |
| MSN: | 172RG0664 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 6490 hours |
| Engine model: | Lycoming O&VO-360 SER |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Greeley, Colorado -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Gillette-Campbell County Airport, WY (GCC/KGCC) |
| Akron-Washington County Airport, CO (AKO/KAKO) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
At the end of a cross-country flight, the commercial pilot noted that the left main landing gear would not extend. He elected to divert to another airport and land with the gear retracted. Postaccident examination revealed that the left main landing gear actuator assembly housing was cracked across the forward attach bolt hole, which resulted in the inability to fully raise or extend the landing gear using either the normal method or the emergency hand pump.
Following the incident, the Federal Aviation Administration released a Special Airworthiness Information Bulletin (SAIB) emphasizing the importance of inspecting main landing gear actuator assemblies. This SAIB recommended complying with a supplemental inspection document provided by the manufacturer that prescribed a combination of visual, fluorescent penetrant, and eddy current inspections. The SAIB also included initial and repetitive inspection intervals.
Probable Cause: Failure of the left main landing gear actuator assembly, which resulted in an inability to extend the left main landing gear.
Accident investigation:
 |
|
Sources:
NTSB CEN17IA155
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Apr-2023 13:08 | ASN Update Bot | Added |
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