# SDR EE4Y2022051715607

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2022
- Submitted: May 17, 2022
- Operation: General aviation
- Filed by: [Cooperativa Autogestionaria de Servicios Aeroindus, repair station EE4Y151M](https://openairdocs.org/faa-repair-station/EE4Y151M/cooperativa-autogestionaria-de-servicios-aeroindus.md) (OpenAirDocs)
- Aircraft: N407YK
- Make and model: Boeing 737436
- Aircraft serial: 25844
- Aircraft time: 58,996 hours, 38,658 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Hinge Pin
- Part number: 69731201
- Condition: Cracked
- Location: Zone 300
- Component: Horizontal Stab, Boeing
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EE4Y2022051715607

## Discrepancy

DURING INSPECTION OF PINS PER SB 737-55A1077  INSTRUCTIONS, IT WAS FOUND THE P/N 69-73120-1 LH OUTER HINGE PIN CRACKED AT ITS TAPERED SHANK AREA. THE DAMAGED PIN HAS BEEN REPLACED AND A DAMAGE REPORT WAS SENT TO BOEING.

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