SDR 2003UALA00543

Service difficulty report · O-Ring · Boeing 737522

Difficulty date: July 3, 2003
Submitted: July 15, 2003
Operation: Air carrier
Aircraft: N951UA
Make and model: Boeing 737522
Aircraft serial: 26696
Aircraft time: 29,252 hours, 18,473 cycles
Engine: Ge CFM56*
System (JASC): 2565 · Escape Slide
Part: O-Ring
Condition: Leaking
Location: Slide Bottle
Stage of operation: IN
How discovered: V
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

UPON ARRIVAL FOUND BOTTLE PRESSURE ON SLIDE AT DOOR 1R BELOW THE GREEN BAND. LEAKING O-RING BETWEEN RESERVOIR AND VALVE/REGULATOR CAUSED REDUCED BOTTLE PRESSURE. REPLACED SLIDE BOTTLE, INSPECTED/TESTED REMOVED BOTTLE TO DETERMINE CAUSE, THEN OVERHAULED VALVE INCLUDING REPLACEMENT OF DEFECTIVE O-RING.