# SDR U2RA2021101100061

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2021
- Submitted: October 11, 2021
- Operation: Air carrier
- Aircraft: [N936CA](https://openairdocs.org/aircraft/N936CA), registered now
- Make and model: Boeing 747446
- Aircraft serial: 25308
- Aircraft time: 79,053 hours, 16,137 cycles
- System (JASC): [5420 · Nacelle/Pylon Miscellaneous Structure](https://openairdocs.org/jasc/5420)
- Part: Frame
- Part number: UNK
- Part serial: NONE
- Condition: Gouged
- Location: Zone 400
- Component: Cowling, Boeing
- Component part number: 224M4761536
- 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/U2RA2021101100061

## Discrepancy

GOUGE DISCOVERED ON INNER FRAME NEAR HOLD OPEN ROD FOR #4 ENGINE OTBD. CORE COWL.  
ACCOMPLISHED MAJOR REPAIR OF THE #4 OUTBD (R/H) CORE COWL FRAME P/N 224M4761-539, S/N 1033 GOUGE AT NAC STA 268.50 AND NAC STA 281.12 IAW VT-SAA EA 747-5411-56-A9231 REV. I/R. 8110-3 APPROVED BY ROBERT M. MANASHI DERT-710167-SW DATED 07/26/2021. VT-SAA NRC B000195.

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