Borescope Inspection of the Combustion Chamber Liners, Dome Areas, HPT Nozzle Vanes and Shrouds (as far as visible through two opposite ports) [CFMI]

TASK 72-41-00-290-001-A
Borescope Inspection of the Combustion Chamber Liners, Dome Areas, HPT Nozzle Vanes and Shrouds (as far as visible through two opposite ports)

1. Reason for the Job
Refer to the MPD TASK: 724000-C1
BORESCOPE INSPECTION OF COMBUSTION CHAMBER LINERS, DOME AREAS, HPT NOZZLE VANES AND SHROUDS (AS FAR AS VISIBLE THROUGH TWO OPPOSITE PORTS)
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 72-42-00-290-001-A	Borescope Inspection of the Combustion Chamber Liners and Dome Area
TASK 72-51-00-290-002-A	Borescope Inspection of the High-Pressure Turbine-Nozzle Assembly
TASK 72-53-00-290-002-A	Inspection of the High-Pressure Turbine Shroud

3. Job Set-up
Subtask 72-41-00-869-050-A ** ON A/C NOT FOR ALL

A. Not Applicable

4. Procedure
Subtask 72-41-00-290-050-A ** ON A/C NOT FOR ALL

A. Borescope inspection
(1) Borescope inspect combustion chamber liners and dome areas (Ref. AMM TASK 72-42-00-290-001).

NOTE: Combustion chamber port access is required through as many ports as necessary to assure 100% combustor inspection coverage.

(2) Borescope inspect high pressure turbine nozzle vanes (Ref. AMM TASK 72-51-00-290-002) .
(3) Borescope inspect high pressure turbine shrouds (Ref. AMM TASK 72-53-00-290-002).

[Rev.10 from 2021] 2026.04.01 02:39:20 UTC