SDR AALA20160525002

Service difficulty report · Bearing · Boeing 737823

Difficulty date: February 20, 2016
Submitted: May 25, 2016
Operation: Air carrier
Aircraft: N933AN
Make and model: Boeing 737823
Aircraft serial: 30080
Aircraft time: 47,344 hours, 19,259 cycles
System (JASC): 2730 · Elevator Control System
Part: Bearing
Condition: Worn
Location: Elevator
Stage of operation: CL
How discovered: O
Nature of condition: E
Precautionary procedure: A

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

What was found

CLIMBING THROUGH 18,000 FEET, AT 280 KNOTS WITH THE NR 1 AUTOPILOT ENGAGED, A DISTINCT & PRONOUNCED BOUNCE & VIBRATION SET UP IN THE LONGITUDINAL AXIS OF THE ACFT. VIBRATION REDUCED WHEN SPEED DECREASED. THE FLIGHT DECLARED AN EMER & DIVERTED WITHOUT FURTHER INCIDENT. THE ACFT WAS GNDED. REPLACED ELEVATOR INPUT FITTING BEARING SLEEVE IAW AMM 27-31-74-400-802. SEE ALSO SDR AALA 20160220004 & AALA 20160525001.