# SDR UIEA2020040600703

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2020
- Submitted: April 13, 2020
- Operation: Air carrier
- Aircraft: [N1381A](https://openairdocs.org/aircraft/N1381A), registered now
- Make and model: Boeing 767316
- Aircraft serial: 27615
- Aircraft time: 88,313 hours, 19,162 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Module
- Part number: 38850811
- Condition: Faulty
- Location: Apu
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020040600703

## Discrepancy

APU BLEED AIR INOP ( AUXILIARY POWER UNIT, PNEUMATIC FUNCTION )(<P>TRANSFERRED TO MDDR 126636 IAW MEL 49-11-01-01, CAT 'C'.</P><P>12APR, LP 1149777, ITEM M3: TROUBLESHOOT APU PNEUMATIC PRESSURE IAW FIM 36-10 FAULT TREE 841 UP TO SHEET 2 BLOCK 35 & FIM 49-11 FAULT TREE A05 UP TO SHEET 4 BLOCK 26. FOUND THE FLOW SENSING MODULE INOP. REMOVED AND REPLACED FLOW SENSING MODULE IAW AMM 49-53-08. OPS CHECK GOOD. THIS CLEARS MDDR 126636, MCC NOTIFIED, PLACARD REMOVED. TIME 1505Z DP.</P>)

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