# SDR SAJFCALS100028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2011
- Submitted: August 22, 2011
- Operation: Air carrier
- Aircraft: N18701
- Make and model: Boeing 747409
- Aircraft serial: 30759
- Aircraft time: 51,124 hours, 8,863 cycles
- System (JASC): [5313 · Fuselage Main, Longeron/Stringer](https://openairdocs.org/jasc/5313)
- Part: Longeron Fitting
- Part number: 65B150342324
- Condition: Cracked
- Location: Zone 100
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SAJFCALS100028

## Discrepancy

(B18701) CRACKS WERE FOUND ON RT SIDE LONGERON EXTENSION FITTING WHEN PERFORMING MPD 53-440-00 INSPECTION.  REMOVED AND INSTALLED LONGERON FITTING IAW 747-53A2390, FIG 22.

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