B.
Equipment
(1)
Protective mat - Rubber Manufacturer's
Association, Grade SC43, neoprene sponge, 1
inch thick, approximately 5x6 feet with warning
streamers attached (3 are necessary).
C.
References
(1)
AMM 70-31-01/201, Fluorescent Penetrant Inspection
D.
Access
(1)
Location Zone
412 Engine 1 - LPC Hub
422 Engine 2 - LPC Hub
432 Engine 3 - LPC Hub
442 Engine 4 - LPC Hub
E.
Procedure
S 866-058-N00
CAUTION:_______MAKE SURE YOU USE A PROTECTIVE MAT. IF YOU DO NOT, DAMAGE MAY RESULT TO THE INNER SURFACE OF THE INLET COWL.
(1) Put the protective mat on the inner surface of the inlet cowl.
S 236-059-N00
WARNING: TO PREVENT INJURY TO YOUR HANDS, GLOVES SHOULD BE WORN WHEN YOU
_______
HANDLE THE BLADES.
(2)
With ultra high sensitivity penetrant, examine the areas of the blade where you think there are cracks (AMM 70-31-01/201).
(a)
Cracks are not permitted.
S 866-061-N00
(3) If you are done with the fan blade inspections, remove the protective mat from the inlet cowl.
TASK 72-31-02-256-062-N00
8. Eddy Current Inspection of the Leading and Trailing Edges for Cracks.
____________________________________________________________________
A. General
(1) Do this inspection (or the fluorescent penetrant inspection) if you think there are cracks and after you repair damage.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
72-31-02
ALL ú ú N01 Page 617 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
B. Equipment
(1)
Protective mat - Rubber Manufacturer's
Association, Grade SC43, neoprene sponge, 1
inch thick, approximately 5x6 feet with warning
streamers attached (3 are necessary).
(2)
Standard - Crack, PWA 28403
(3)
Probe - Leading Edge, PWA 28404, (Optional to PWA 75909)
(4)
Probe - Trailing Edge, PWA 28443 (Optional to PWA 75909)
(5)
Probe - PWA 75909, Pratt & Whitney Aircraft
(6)
Eddy Current Instrument - Model ED 1500, Magnaflux
Corporation, 7300 W. Lawrence Ave., Chicago, Ill.
60656
(7)
Detectometer - 2.154 or 2.164 Krauthromer - Branson
Inc., 76 Progress Drive, Standford, Conn. 06904 or
Institute Doctor Forster, D-7410 Reutlingen,
Grathwohl STR-4, West Germany (or equivalent)
(8)
Signal Recorder (Optional) - Models 135X, 7034A,
7044, or 680, (International) Hewlett-Packard 3200
Hillview Ave., Palo Alto, CA 94304 or (Domestic)
Hewlett Pa ckard, 1501 Page Hill Road, Palo Alto, CA
94306 (or equivalent)
C.
Consumable Materials
(1)
B00148, Solvent - PMC 9076 Methyl Ethyl Ketone (MEK)
(2)
G02187 Tape - MISC 148 Teflon Adhesive, Type T
(3)
G02188 Cloth, Abrasive - MISC 114, 240 Grit, Aluminum Oxide
D.
References
(1)
AMM 72-31-01/401, Inlet Cone
(2)
AMM 72-31-02/801, LPC 1st-Stage Fan Blades
E.
Access
(1)
Location Zone
412 Engine 1 - LPC Hub
422 Engine 2 - LPC Hub
432 Engine 3 - LPC Hub
442 Engine 4 - LPC Hub
F.
Prepare for the Inspection
S 866-063-N00
CAUTION:_______MAKE SURE YOU USE A PROTECTIVE MAT. IF YOU DO NOT, DAMAGE MAY RESULT TO THE INNER SURFACE OF THE INLET COWL.
(1)
Put the protective mat on the inner surface of the inlet cowl.
中國航空網(wǎng) m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 發(fā)動機(jī) ENGINE 1(156)
