# SDR 98FDEA00531

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N583FE](https://openairdocs.org/aircraft/N583FE), registered now
- Make and model: Doug MD-11
- Registry model: [Doug MD-11](https://openairdocs.org/model/mcdonnell-douglas-md-11) (OpenAirDocs)
- Aircraft serial: 48421
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Precooler
- Part number: 1897403
- Condition: Failed
- Location: Pneu System
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98FDEA00531

## Discrepancy

DURING CLIMB, AIR MANIFOLD NR 2 FAIL ALERT CAME ON, W/I 10 TO 15 SECONDS OF THE NR 2 MANIFOLD FAIL ALERT, GOT THE NR 3 BLEED AIR OFF ALERT.  FOUND THE PRECOOLER LEAKING INTERNALLY.  REMOVED AND REPLACED THE PRECOOLER, ALSO REMOVED AND REPLACED 14A AND B MANIFOLD SENSE ELEMENTS, MANIFOLD DECAY CHECK WAS GOOD PER THE JRH.

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