# SDR 22AA201000050

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2010
- Submitted: March 31, 2010
- Operation: Air carrier
- Aircraft: N478CT
- Make and model: Doug DC-10-30F
- Registry model: [Doug DC-10-30F](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f) (OpenAirDocs)
- Aircraft serial: 47819
- Aircraft time: 91,438 hours, 21,022 cycles
- Engine: Ge CF650C2
- System (JASC): [5413 · Nacelle/Pylon, Longeron/Stringer](https://openairdocs.org/jasc/5413)
- Part: Longeron
- Condition: Cracked
- Location: Nr 1 Nacelle
- Part time: 91,438 hours, 21,022 cycles
- 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/22AA201000050

## Discrepancy

DURING "C" CHECK, NR 1 ENG LT CORE COWL LOWER LONGERON FOUND CRACKED. NON-ROUTINE NR 0124, CRACK AREA AT NR 1 ENGINE LT CORE COWL LOWER LONGERON AREA REPAIRED IAW EN 1016-10 WORK INSTRUCTIONS AND FAA APPROVED FORM 8110-3 DATED 12 MARCH 2010.

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