# SDR FDEA201811223349

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2018
- Submitted: November 23, 2018
- Operation: Air carrier
- Aircraft: [N599FE](https://openairdocs.org/aircraft/N599FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48598
- Aircraft time: 80,099 hours, 16,447 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Doubler
- Part number: ACA385021
- Condition: Cracked
- Location: Zone 100
- 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/FDEA201811223349

## Discrepancy

NR 1 RAM AIR EXHAUST CUTOUT DOUBLER SUSPECT CRACKED STATION 561 LONGERON 48 LEFT. CRACKED DOUBLER REMOVED AND REPLACED WITH NEW DOUBLER AS PER SRM 51-35-01-0G. NEW DOUBLER FABRICATED AS PER DRAWING ACA 3850 REVISION AA. REPAIR CLASSIFIED AS MAJOR PER GMM 6-2-100.

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