Service difficulty report · Apu · Boeing 767375

Difficulty date
October 8, 2021
Submitted
October 19, 2021
Operation
Air carrier
Aircraft
N1709A
Make and model
Boeing 767375
Aircraft serial
24086
Part
Apu
Part number
38002981
Part serial
P2698
Condition
None
Stage of operation
NR
How discovered
V
Nature of condition
P
Precautionary procedure
O

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

What was found

APU DUCT PRESS SURGING WHEN PNEUMATIC LOAD APPLIED TO APU(<P>PERFORMED FIM 49-11 FT. 976 TO BLOCK 8. ISSUE STILL REMAINS. TRANSFERRED TO DMI 154796 IAW DDG 36-11-04. PLACARD INSTALLED AND MX ACTIONS ACCOMPLISHED.</P> / <P>18OCT- CVG MX: LP 1387361, ITEM M15: REMOVED AND REPLACED APU IAW AMM 49-11-01, OPS CHECK OK.</P>)