# SDR FDEA202109222353

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2021
- Submitted: October 11, 2021
- Operation: Air carrier
- Aircraft: [N624FE](https://openairdocs.org/aircraft/N624FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48443
- Aircraft time: 110,995 hours, 23,309 cycles
- System (JASC): [5531 · Vertical Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5531)
- Part: Spar Cap
- Part number: AIJC7515501
- Condition: Cracked
- Location: Vertical Stab
- Stage of operation: IN
- How discovered: E
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202109222353

## Discrepancy

DURING HIGH FREQUENCY EDDY CURRENT SURFACE INSPECTION ON THE LEFT HAND   FORWARD FLANGE OF UPPER SECTION REAR SPAR CAP AT LOWER VERTICAL STABILIZER ,   NUMBER 4 BANJO FITTING STATION Y = 2164 , FOUND 01 EACH CRACK INDICATION BETWEEN   THE LOWEST TWO FASTENERS. LOWER VERTICAL STABILIZER NUMBER 4 BANJO FITTING STATION Y = 2164 01 EACH CRACKED   BETWEEN THE LOWEST TWO FASTENERS ON LEFT HAND FORWARD FLANGE OF UPPER   SECTION TRIMMED AS PER SRM 55-30-02-2R FIGURE 201 REPAIR 5 AND REPAIR CARRIED OUT   AS PER SRM 55-30-02-2R FIGURE 202 REPAIR 5. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-  100. TO CARRIED OUT INITIAL INSPECTION AT 5400 FLIGHT CYCLES AND REPETITIVE   INSPECTION AT EVERY 2700 FLIGHT CYCLES AS PER SRM 55-30-02-2R TABLE 203 REPAIR 5   REQUIREMENTS. INSPECTION METHOD BY ULTRASONIC AND HIGH FREQUENCY EDDY   CURRENT PER SN10550000.

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