# SDR FDEA201301030011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 3, 2013
- Submitted: January 3, 2013
- Operation: Air carrier
- Aircraft: N392FE
- Make and model: Doug MD-10-10F
- Registry model: [Doug MD-10-10F](https://openairdocs.org/model/mcdonnell-douglas-md-10-10f) (OpenAirDocs)
- Aircraft serial: 46626
- Aircraft time: 82,949 hours, 31,807 cycles
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Relay
- Part number: TD1239
- Condition: Failed
- Location: Manifold Delay
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201301030011

## Discrepancy

AIR MANIFOLD NR 3 FAILED LEVEL 3 ALERT WHEN ANTI-ICE SELECTED ON, DURING DESCENT.  PERFORMED A GVI OF PNUEMATIC DUCTS AND VALVES IN WING AND PYLON AREA. PERFORMED PNEUMATIC DECAY TEST IAW AMM 36-00-01-5  WITH NO FAULTS. DURING SYS TESTS USING APU, FOUND THE MANIFOLD DELAY RELAY BAD, REPLACED RELAY AND SYS OPS CHECKED GOOD.

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