# SDR 2002FA0000421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2002
- Submitted: April 1, 2002
- Operation: General aviation
- Aircraft: [N90275](https://openairdocs.org/aircraft/N90275), registered now
- Make and model: Wthrly 620B
- Aircraft serial: 1637
- Engine: Pwa R985*
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Bulkhead
- Part number: 50351101
- Condition: Cracked
- Location: Fuselage
- Part time: 1,015 hours
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002FA0000421

## Discrepancy

DURING ANNUAL INSPECTION FOUND FUSELAGE BELLY PAN BULKHEAD (PN 50351-101) CRACKED UPPER LEFT AND RIGHT CORNER.  THIS AREA IS HARD TO SEE WITHOUT FLASHLIGHT AND MIRROR.  ALSO FOUND TAIL CONE BULKHEADS (PN 50351-105) AND (PN 50351-133) CRACKED AND TABS WHERE BULKHEAD IS RIVETED TO THE BELLY SKIN BROKEN.  SUGGEST A THROUGH INSPECTION OF THIS AREA USING A FLASHLIGHT AND MIRROR.

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