SDR UIEA2020010600020

Service difficulty report · Start Valve · Boeing 767306

Difficulty date: January 5, 2020
Submitted: February 4, 2020
Operation: Air carrier
Aircraft: N1427A
Make and model: Boeing 767306
Aircraft serial: 28098
Aircraft time: 80,520 hours, 17,328 cycles
System (JASC): 8012 · Engine Start Valves/Controls
Part: Start Valve
Part number: 32911723
Part serial: 528C
Condition: Malfunctioned
Location: Lt Engine
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K, O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

APU INSUFFICIENT DUCT PRESSURE(<P>ITEM TRANSFERRED TO MDDR 123039 IAW DDG 49-11-01-01, CAT 'C'.</P><P>REF LOG PAGE 1178031: FOUND INSUFFICIENT AIR FLOW IN LH STARTER, REMOVED AND REPLACED LEFT ENG STARTER (OFF PART: P/N 3505448-5-1, S/N GRTA0349) AND START VALVE WITH DIFFERENT MODELS, PER AMM 80-11-01/80-11-02, OPS CHK GOOD. THIS CLEARS MDDR 123039.</P>)