# SDR FDEA202609011252

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 1, 2026
- Submitted: September 1, 2026
- Operation: Air carrier
- Aircraft: [N617FE](https://openairdocs.org/aircraft/N617FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48748
- Aircraft time: 87,151 hours, 22,131 cycles
- System (JASC): [5411 · Nacelle/Pylon, Frame/Spar/Rib](https://openairdocs.org/jasc/5411)
- Part: Spar Cap
- Part number: AVB7506501
- Condition: Cracked
- Location: Zone 400
- Stage of operation: IN
- How discovered: U
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202609011252

## Discrepancy

TAIL PYLON UPPER SPAR,  LT SIDE UPPER CAP VERTICAL FLANGE AT STA YID=   408.500, FOUND A CRACK INDICATION APPROX 0.35" IN LENGTH FROM FWD EDGE DURING ULTRASONIC INSPECTION.  CRACK ON LEFT HAND SIDE UPPER CAP VERTICAL FLANGE AT STATION YID= 408.500 REPAIRED AS   PER EA# 1-5451-T0388550 P1 TITLE: NACELLES/PYLON - TAIL PYLON/STRUT - CRACK ON LH   VERTICAL FLANGE OF UPPER AFT SPAR STA 408.5 - ALI PSE 54.52.01.1 INSP. REPAIR CLASSIFIED   AS MAJOR PER GMM 6-2-100.

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