SDR I5EA2018102400001

Service difficulty report · Regulator · Boeing 737484

Difficulty date: October 23, 2018
Submitted: October 24, 2018
Operation: Air carrier
Aircraft: N314XA
Make and model: Boeing 737484
Aircraft serial: 25314
Aircraft time: 62,114 hours, 38,662 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Regulator
Part number: 1074926
Part serial: 1465C
Condition: Unserviceable
Location: Zone 400
Stage of operation: CR
How discovered: O
Nature of condition: J, O
Precautionary procedure: I, O

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

What was found

AT FL320, CABIN ALT WARNING HORN, PERFORMED QRH PROCEDURE, DESCEND TO 10,000, RETURN TO GSO. AT CRUISE PRIOR TO PRESSURE LOSS RT PNEUMATIC PRESSURE 50 PSI, LEFT PNEUMATIC PSI 10. REMOVED AND REPLACED NR 1 ENG BLEEP AIR REGULATOR, NO LEAKS NOTED, OPERATIONAL TEST GOOD IAW AMM 36-11-16.