# SDR ASAA2015072812625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2015
- Submitted: July 30, 2015
- Operation: Air carrier
- Aircraft: [N477AS](https://openairdocs.org/aircraft/N477AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40716
- Aircraft time: 328 hours, 116 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Eec
- Part number: 2042M67P04
- Part serial: FFFB4211
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 328 hours, 116 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/ASAA2015072812625

## Discrepancy

WHILE ATTEMPTING TO COMPLETE T/C 78273000, INTERROGATED THE FMC CDU FOR ENGINE FAULTS, ENGINE 1 EEC SHOWS WHEN RECENT FAULTS SELECTED "CH B EEC DATA NOT AVAILABLE - CANNOT ACCESS CH B".  ACFT GROUNDED.  WILL NOT ENTER INTO GROUND TESTS WHEN LINE 4L SELECTED.  IDENT/ CONFIG SHOWS SAME FAULT. CYCLED A/C POWER AND CYCLED 4 EA, C/B'S P18-2 A1, A3, A4, AND A5, NO HELP.  REPLACED NR 1 EEC REF MM 73-21- 60. OPS NORMAL, REF SAME MM REQ'D TESTS.

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