# SDR TWAA0008707

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2000
- Submitted: June 5, 2000
- Operation: Air carrier
- Aircraft: [N921L](https://openairdocs.org/aircraft/N921L), registered now
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Aircraft serial: 47107
- Aircraft time: 80,344 hours, 86,616 cycles
- System (JASC): [7120 · Engine Mount Section](https://openairdocs.org/jasc/7120)
- Part: Mount
- Condition: Cracked
- Location: Rt Engine
- 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/TWAA0008707

## Discrepancy

DURING OP 16 MAINT CHECK, STA 1036 RT PYLON FWD SIDE OF ENGINE MOUNT STRUCTURE, 6 INCHES FROM FUSELAGE HAD CRACK AT AFT I/B CORNER OF BOX.  STOP DRILLED CRACK, FABRICATED AND DRILLED 2 TITANIUM DOUBLERS AND INSTALLED ON ACFT PER SRM 54-01 METAL TO METAL REPAIR.  FASTENER SUBSTITUTION PER SRM 51-60-00.

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