SDR RU3A20140911029

Service difficulty report · O-Ring · Lear 60LEAR

Difficulty date: September 10, 2014
Submitted: September 11, 2014
Operation: Air carrier
Aircraft: N58
Make and model: Lear 60LEAR
Aircraft serial: 057
Aircraft time: 9,342 hours, 4,465 cycles
System (JASC): 2910 · Hydraulic System, Main
Part: O-Ring
Condition: Cut
Location: Hydraulic Sys
Part time: 9,342 hours, 4,465 cycles
Stage of operation: TX
How discovered: O
Nature of condition: K, B
Precautionary procedure: D

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

What was found

AFTER NR 1 ENG START CREW STARTED TO SMELL AN ODOR, STARTED NR 2 ENG & SHUTDOWN APU, ODOR GOT WORSE. PILOT CALLED MX TO THE ACFT, MX RODE WITH PILOTS TO RUN-UP AREA. PILOT INCREASED POWER TO 56% N1, TURNED ACFT AIR CONDITIONER TO FULL HOT & ACFT FILLED WITH BLUE SMOKE IMMEDIATELY. TROUBLE SHOT & O RING CUT ON RESERVOIR PRESS CHECK VLV. FOUND CHECK VLV TO BE OLD STYLE. COMPLIED WITH SB 60-29-8 WHICH REPLACES THE CHECK VLV WITH A LOW PRESS ZERO LEAKAGE VLV.