SDR UPS03839998

Service difficulty report · Regulator · Doug DC873F

Difficulty date: January 3, 2003
Submitted: January 3, 2003
Operation: Air carrier
Aircraft: N806UP
Make and model: Doug DC873F
Aircraft serial: 46006
System (JASC): 3510 · Crew Oxygen System
Part: Regulator
Condition: Bypassing
Location: Oxygen Sys
Stage of operation: CR
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

2ND OBSERVER O2 REGULATOR BY-PASSING AIR IN FLIGHT, LOST O2 EMERGENCY SYSTEM. FOUND FIRST OBSERVERS SUPPLY LINE TO REGULATOR LEAKING AT FITTING, DAMAGED. THIS FITTING WAS DAMAGED AT TEE FITTING BEHIND 2ND OBSERVERS REGULATOR. REMOVED AND REPLACED SUPPLY HOSE, OPS CHECK GOOD. LEAK CHECK GOOD.

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