SDR ASAA2018030523764

Service difficulty report · Bearing · Boeing 737990ER

Difficulty date: March 5, 2018
Submitted: March 6, 2018
Operation: Air carrier
Aircraft: N403AS
Make and model: Boeing 737990ER
Aircraft serial: 41730
Aircraft time: 21,423 hours, 7,052 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Bearing
Condition: Worn
Location: Bleed Duct
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

WHILE ACCOMPLISHING TC 73472000, FOUND THE NR 2 ENGINE UPPER ROD END LINK LOOSE, JUST FWD OF PRSOV. ACFT GROUNDED. REMOVED THE UPPER ROD END LINK FWD OF PRSOV. ON REMOVAL, FOUND A WORN BEARING ATTACHED TO LOWER 5TH AND 9TH STAGE BLEED DUCT. REMOVED AND REPLACED BLEED DUCTS IAW 71-00-02. INSTALLED UPPER ROD END LINK IAW 71-00-02. LEAK CHECKED IAW AMM 36-00-00. NO LEAKS NOTED AT THIS TIME. OPS CHECKED GOOD.