# SDR FDEA202203180579

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2022
- Submitted: March 21, 2022
- Operation: Air carrier
- Aircraft: [N861FD](https://openairdocs.org/aircraft/N861FD), registered now
- Make and model: Boeing 777-FS2
- Registry model: [Boeing 777-FS2](https://openairdocs.org/model/boeing-777-fs2) (OpenAirDocs)
- Aircraft serial: 37732
- Aircraft time: 40,322 hours, 6,533 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Doubler
- Condition: Damaged
- Location: Zone 100
- 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/FDEA202203180579

## Discrepancy

DURING PERFORMING EA T G-5710-T0366591 P2 STEP 11.C.(5), FOUND 01EA ZLJ-8(BACB30NY8K*)   COUNTERSUNK FASTENER AT STA998 STGR35 RHS TOO CLOSE TO EDGE OF MACHINED STEP OF   DOUBLER P/N 143W2314Y406, AND WILL RESULT IN KNIFE EDGE WITH MACHINED STEP ON AFT   EDGE OF COUNTERSUNK HOLE.  PROTRUDING HEAD FASTENER INSTALLED AS PER EA G-5710-T0367508 P2 .TITLE :WING   -BASIC   WING STRUCTURE -CENTER WING RING CHORD .FRONT SPAR LOWER CHORD AND WEB LH   AND   RH UNDERWING LONERON INSPECTION /MODIFICATION -DEVIATION TO SB777-  57A0122RB .REFER   TO WRI:57101089 FOR THE WORK DETAIL .REPAIR CLASSIFIED AS MAJOR PER GMM6-2-100.

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