SDR CALA2025032800501

Service difficulty report · O2 Generator · Boeing 7879

Difficulty date: March 26, 2025
Submitted: March 28, 2025
Operation: Air carrier
Aircraft: N38955
Make and model: Boeing 7879
Aircraft serial: 37814
Aircraft time: 46,181 hours, 4,472 cycles
System (JASC): 5100 · Standard Practices/Structures
Part: O2 Generator
Part number: 4441158002
Condition: Expired
Location: Zone 200
Stage of operation: NR
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

FOUND FOLLOWING PAX OXYGEN CYLINDERS INITIATORS EXPIRED.20AC,21AC,22AC,46ABC,47ABC,48ABC,49ABC,46DEF,47DEF, DR2 CROSS AISLE, DR2L AFT, DR4 LEFT AFT,DR4 CROSS AISLE, DR4L AFT.TOTAL OF 14 INIATORS. ALL 14 INITIATORS REPLACED FOUND SATISFACTORY IAW CMM 35-22-29. INSTALLATION TEST C/OUT FOUND SATISFACTORY IAW AMM 35-21-00. REFER EC/RA #3520-01774 FOR INITIATOR REPLACEMENT.

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