Service difficulty report · Drain Mast · Boeing 737990ER

Difficulty date
July 11, 2018
Submitted
July 12, 2018
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
17,920 hours, 5,936 cycles
Part
Drain Mast
Part number
346A28015
Condition
Cracked
Location
Hydraulic Sys
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

APU SHROUD / HYDRAULIC DRAIN MAST CRACKED. GROUNDED - YES. REMOVED AND REPLACED THE APU SHROUD / HYDRAULIC DRAIN MAST REF AMM 28-25-07/401.