# SDR FDEA201804050857

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2018
- Submitted: April 26, 2018
- Operation: Air carrier
- Aircraft: [N937FD](https://openairdocs.org/aircraft/N937FD), registered now
- Make and model: Boeing 757-2T7
- Registry model: [Boeing 757-2T7](https://openairdocs.org/model/boeing-757-2t7) (OpenAirDocs)
- Aircraft serial: 23895
- Aircraft time: 70,508 hours, 31,062 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Coupling
- Part number: 2703500
- Condition: Leaking
- Location: Rt Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201804050857

## Discrepancy

ABOUT 25 MINUTES INTO FLIGHT, RECEIVED A RT ENGINE OVERHEAT EICAS MESSAGE & RT ENGINE OVERHEAT LIGHT.  COMPLIED WITH  QRH AND LIGHT WENT OUT AFTER ABOUT 3 MINUTES WITH  RIGHT THRUST LEVER AT IDLE.  ALL ENGINE INSTRUMENT  INDICATIONS WERE NORMAL.  LANDED WITH RIGHT ENGINE AT IDLE.   PERFORMED PNEUMATIC BACK PRESSURE LEAK CHECK ON THE NR 2 ENGINE IAW MM 36-11-00-5,  FOUND A LEAK AT INTERMEDIATE PRESSURE CHECK VALVE. REMOVED AND REPLACED BOTH COUPLINGS AND E-SEALS ON VALVE IAW MM 36-11-06-04-1. ALSO INSPECTED HP2 ,HP6 VALVES AND DUCTING IAW MTSI. NO REPEATED LEAKS NOTED ON THE NR 2 ENGINE.

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