SDR AALA202110110927

Service difficulty report · Hose · Boeing 737823

Difficulty date: October 7, 2021
Submitted: October 11, 2021
Operation: Air carrier
Aircraft: N801NN
Make and model: Boeing 737823
Aircraft serial: 29565
Aircraft time: 36,412 hours, 14,797 cycles
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Hose
Condition: Damaged
Location: Zone 700 - Gears
Stage of operation: CR
How discovered: V
Nature of condition: K
Precautionary procedure: O

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

What was found

AIRCRAFT WAS GROUNDED: LOSS OF HYDRAULIC SYSTEM A PRESSURE AND QUANTITY, FLIGHT DECLARED EMERGENCY; AFTER LANDING, HYDRAULIC SYSTEM B AT 40% QTY AND AIRCRAFT LOST NOSE WHEEL STEERING. REPLACED HYDRAULIC HOSE FOR RH MLG RETRACTION ACTUATOR WITH NEW IAW AMM 32-32-11, LEAK AND OPS CHECK GOOD.