SDR ASAA0956251

Service difficulty report · Regulator · Boeing 737890

Difficulty date: July 22, 2009
Submitted: July 27, 2009
Operation: Air carrier
Aircraft: N560AS
Make and model: Boeing 737890
Aircraft serial: 35179
Aircraft time: 11,298 hours, 3,584 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Regulator
Part number: 1074847
Part serial: 7611
Condition: Failed
Location: Nr 1 Engine
Part time: 15,579 hours, 6,486 cycles
Stage of operation: IN
How discovered: C
Nature of condition: O
Precautionary procedure: K

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

What was found

NUMBER 1 ENGINE HIGH STAGE REGULATOR FAILED HEALTH CHECK. REMOVED AND REPLACED NR 1 ENGINE HIGH STAGE REGULATOR PER MM 36 11 02 000 801 AND MM 36 11 02 400 801. ACCOMPLISHED NR 1 ENGINE HIGH STAGE REGULATOR INSTALLATION TEST PER MM 36 11 02 400 801 STEP F, TEST GOOD.