# SDR CALA2014060591207

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2014
- Submitted: June 5, 2014
- Operation: Air carrier
- Aircraft: [N772UA](https://openairdocs.org/aircraft/N772UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26930
- Aircraft time: 74,473 hours, 13,244 cycles
- Engine: Pwa PW4077
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Dented
- 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/CALA2014060591207

## Discrepancy

FUSELAGE EXTERIOR SKIN DENT AT STATION 2100 RT STRINGER 29R - 30R.  DENT OUT OF LIMITS IAW 53-00-01.  THIS EXT DOUBLER REPAIR 7 IS A CAT B REPAIR IN ZONE B.  SUBSEQUENT INSPECTIONS ARE NECESSARY FOR REPAIR 7 IAW PARA 6 REPAIR 7 PAGE 216, TABLE 204.  INTERNAL HFEC RECOMMENDED IAW NDT.  IAW NDT PART 6, 53-00-06 & DETAILED VISUAL INSPECTION PARTIAL. DOUBLER REPAIR AT STATION 2087 TO 2108. STRINGER 29R - 30R REQ RE INSPECTION EVERY 16K CYCLE THRESHOLD AT TIME OF REPAIR.  CURRENT PTC=13244.  INITIAL CRITICAL ROWS OF FASTENERS ARE ZERO TIMED.  MF4149 ADDED TO MONITOR.  HOLES 0 TIMED THRESHOLD IS 30000 CYC FROM TIME REPAIR WAS INSTALLED WITH REPEAT INSP EVERY 16000 CYC THEREAFTER.  INSPECTION IAW SRM 53-00-01 RPR 7 TABLE 204.  THIS IS A PERM REPAIR PROVIDED REPEAT INSPECTION ON MF4149 ARE ACCOMPLISHED.  MOVED CF548 TO CF9 STATUS & REMOVED HARD TIME LIMITS.

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