# SDR 96ZZZX5338

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N33075](https://openairdocs.org/aircraft/N33075), registered now
- Make and model: Piper PA-28R-200
- Registry model: [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200) (OpenAirDocs)
- Aircraft serial: 28R7535116
- System (JASC): [3211 · Main Landing Gear Attach Section](https://openairdocs.org/jasc/3211)
- Part: Bolt
- Part number: 402960
- Condition: Wrong Part
- Location: Mlg Trunnion
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96ZZZX5338

## Discrepancy

WHILE REPAIRING MLG, ORDERED 2 BOLTS, PIPER PN 402-960 (NAS 464P8A-44) THAT ATTACHES THE MAIN GEAR TRUSS ASSY (452-368) TO THE MLG TRUNNION.  WHEN INSTALLED, THESE BOLTS INTERFERE WITH GEAR RETRACTION BECAUSE THE HEX HEAD CONTACTS THE GEAR DOOR RETRACTION ROD.  FURTHER INVESTIGATION DISCOVERED THE OLD P/N 400-810 (AN28-50A) AS THE ONLY BOLT THAT WILL WORK DUE TO CLEVIS HEAD BEING A SMALLER DIMENSION THAN THE HEX HEAD NAS BOLT.  BOTH PART NUMBERS WERE STILL VALID WITH PIPER.

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