# SDR CALA0400378

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2004
- Submitted: April 16, 2004
- Operation: Air carrier
- Aircraft: [N23721](https://openairdocs.org/aircraft/N23721), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28940
- Aircraft time: 17,835 hours, 5,723 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Pin
- Part number: 180A16211
- Condition: Corroded
- Location: Lt Hor Stab
- 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/CALA0400378

## Discrepancy

INSPECTION FOUND LEFT HORIZONTAL STABILIZER REAR SPAR UPPER PIN CORRODED.  THE PIN WAS REMOVED AND REPLACED IAW EA 5510-01696.

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