SDR PCAA0306078

Service difficulty report · O-Ring · Dhav DHC8102

Difficulty date: June 19, 2003
Submitted: June 23, 2003
Operation: Air carrier
Aircraft: N832EX
Make and model: Dhav DHC8102
Aircraft serial: 280
Aircraft time: 29,842 hours, 33,376 cycles
System (JASC): 2910 · Hydraulic System, Main
Part: O-Ring
Part number: NAS16128
Condition: Failed
Location: Hyd System
Stage of operation: AP
How discovered: O
Nature of condition: K
Precautionary procedure: B

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

What was found

FLIGHT 3867 FROM SYR TO LGA ON APPROACH TO LGA CREW NOTICED NR 2 HYDRAULIC ISOLATION VALVE CONTENTS WERE CLOSE TO ZERO. CREW DECLARED AN EMERGENCY. PUT THE GEAR DOWN MANUALLY AND LANDED WITHOUT FURTHER INCIDENT. LGA MECHANIC INSPECTED AND FOUND O-RING ON ONE LINE TO POWER TRANSFER UNIT LEAKING. REMOVED AND REPLACED O-RING. SERVICED AND BLED NR 2 HYDRAULIC SYSTEM, LEAK CHECKED GOOD IN ACCORDANCE WITH MAINTENANCE MANUAL CHAPTER 29-11-00.