ASN Wikibase Occurrence # 314597
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| Date: | Thursday 26 August 2010 |
| Time: | 04:00 LT |
| Type: |  Diamond DA 20-C1 |
| Owner/operator: | Image Air Of Southwest Florida Lc |
| Registration: | N409AM |
| MSN: | C0343 |
| Year of manufacture: | 2005 |
| Total airframe hrs: | 1801 hours |
| Engine model: | Continental IO-240-B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Bloomington, Illinois -
 United States of America
|
| Phase: | Standing |
| Nature: | Training |
| Departure airport: | Bloomington-Normal Airport, IL (BMI/KBMI) |
| Bloomington-Normal Airport, IL (BMI/KBMI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A student pilot found a cracked nose landing gear (NLG) fork, which was the third cracked fork the operator reported in the previous 17 months. A Federal Aviation Administration (FAA) Service Difficulty Report (SDR) query revealed there were 12 SDR reports on the NLG forks, which included the three from the incident operator. Another operator had a fleet of 44 airplanes. This fleet's airplanes accumulated 13 cracked NLG forks in 17 months. According to a fleet representative, their normal procedure for reporting failed parts was to submit the information directly to the manufacturer, instead of submitting a SDR. The airplane's manufacturer recommended the installation of screws in the bolt holes used to secure the fairing to the NLG fork, which reportedly reduced a stress concentration point. The airplane manufacturer published a Service Information Letter (SIL), which depicted a replacement NLG fork assembly, and described the installation process. The SIL also referred owners to the maintenance manual for new inspection requirements that require the NLG to be inspected every 100 hours as opposed to the previous 6,000-hour inspection cycle. The National Transportation Safety Board issued recommendations to the FAA to encourage "all persons or organizations that operate under 14 CFR Parts 43 and 91 to submit Malfunction or Defect Reports ... and to ... encourage foreign regulatory agencies to provide service difficulty data from resident operators and manufacturers to the FAA for incorporation into the FAA service difficulty data base."
Probable Cause: The cracked nose landing gear fork assembly found during the preflight inspection.
Accident investigation:
 |
|
Sources:
NTSB CEN10IA554
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Jun-2023 18:50 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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