Service difficulty report · Track · Boeing 7377H4

Difficulty date
June 9, 2021
Submitted
July 15, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 cycles
Part
Track
Condition
Cracked
Location
Fuselage
Stage of operation
IN
How discovered
9
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

CRACKED TRACK AT AFT CARGO BAY BS727E RBL13 WL156. MARKED ; / [01] EVALUATED CRACK ON TRACK; FOUND TO BE OUT OF LIMITS DUE TO NOT ALLOWED PER SRM 53-00-53-1A-2; [02] VERIFIED EVALUATION OF CRACK ON TRACK; FOUND TO BE OUT OF LIMITS DUE TO NOT ALLOWED PER SRM 53-00-53-1A-2; [03] REMOVED CARGO TRACK BS 727-887 RBL 13 WL 156 PER SRM 51-40-02-0G-0.; [04] LOCATED AND DRILLED ACB FLOOR SUPPORT TRACK BS 727-887; RBL 13 PER SRM 51-40-05; DWG# 146A7500.<BR><BR>LOCATED AND DRILLED ACB FLOOR SUPPORT TRACK SPLICE ANGLE B/N BS 747-767; RBL 13 PER SRM 53-00-53-2R-3; FIG 203. A.<BR>OK TO INSTALL; [05] VERIFIED LOCATED AND DRILLED ACB FLOOR SUPPORT TRACK BS 727-887; RBL 13 PER SRM 51-40-05; DWG# 146A7500 OK TO INSTALL GIVEN.; [06] INSTALLED ACB FLOOR SUPPORT TRACK BS 727-887; RBL 13 PER SRM 51-40-02; DWG# 146A7500 AND SPLICE ANGLE B/N BS 747-767; RBL 13 PER SRM 53-00-53-2R-3.; [07] RII FUNCTION VERIFIED INSTALLED ACB FLOOR SUPPORT TRACK BS 727-887; RBL 13 PER SRM 51-40-02; DWG# 146A7500 AND SPLICE ANGLE B/N BS 747-767; RBL 13 PER SRM 53-00-53-2R-3.; [08] VERIFIED INSTALLED ACB FLOOR SUPPORT TRACK BS 727-887; RBL 13 PER SRM 51-40-02; DWG# 146A7500 AND SPLICE ANGLE B/N BS 747-767; RBL 13 PER SRM 53-00-53-2R-3.

More about the Boeing 737-7H4