# SDR UALA2012062203349

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2012
- Submitted: August 24, 2012
- Operation: Air carrier
- Aircraft: N178UA
- Make and model: Boeing 747422
- Aircraft serial: 24385
- Aircraft time: 90,479 hours, 10,927 cycles
- Engine: Pwa PW4056
- System (JASC): [5322 · Fuselage Internal Mounting Structure](https://openairdocs.org/jasc/5322)
- Part: Shear Tie
- Condition: Cracked
- Location: Fuselage
- 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/UALA2012062203349

## Discrepancy

BS 140-160 BL 0 TO RBL 50 FLOOR TO SKIN SHEAR TIE INSTALLATION CRACK REPAIRED IAW ECRA 5311-01552.  INSPECTION REQUIRED AT 3,000 FLIGHT CYCLE INTERVAL WITH A THRESHOLD OF 25,927 AIRFRAME TOTAL CYCLES.  ACCOMPLISH DETAILED VISUAL INSPECTION IAW PART 2 OF ECRA 5311-01552 BEGINNING AT 25,927 AIRFRAME TOTAL CYCLES.

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