S 216-007
(2)
Do an inspection of the sampling tubes.
S 216-003
(3)
Make sure the holes in the sampling tubes are free of obstructions and contamination.
(4)
Clean blocked or contaminated sampling tubes (AMM 26-14-05/701).
S 216-005
(5)
Replace rubber tubing and shrinkable tubing connectors, end caps and flex hoses that are cracked, worn, or damaged.
S 166-004
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
26-14-05
ALL ú ú 05 Page 601 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
MAIN DECK CARGO COMPARTMENT SMOKE DETECTION TUBING - CLEANING/PAINTING
______________________________________________________________________
1. General
_______
A. This section contains the procedure to clean the smoke detection tubing in the main deck cargo compartment.
B. There are 16 smoke detection zones in the main deck cargo compartment. Each zone has sampling ports located in the compartment ceiling to draw air in to sample for smoke. There are either five or six sampling ports for each zone. Air flows through tubes above the ceiling panels and outboard of the sidewall panels to the smoke detectors. There are two smoke detectors (mounted side by side) in each Zone.
C. The approximate locations of sampling ports and detectors are:
~.........................................................
| | Sampling Ports | Smoke Detectors |
| Zone | (Station) | (Station) |
...........................................................
| 1 | 240 to 390 | 390 |
...........................................................
| 2 | 400 to 590 | 510 |
...........................................................
| 3 | 580 to 670 | 670 |
...........................................................
| 4 | 720 to 870 | 770 |
...........................................................
| 5 | 860 to 970 | 970 |
...........................................................
| 6 | 1010 to 1160 | 1070 |
...........................................................
| 7 | 1170 to 1260 | 1270 |
...........................................................
| 8 | 1260 to 1370 | 1310 |
...........................................................
| 9 | 1400 to 1490 | 1450 |
...........................................................
| 10 | 1500 to 1630 | 1570 |
...........................................................
| 11 | 1630 to 1720 | 1670 |
...........................................................
| 12 | 1770 to 1930 *[1] | 1710 |
...........................................................
| 13 | 1790 to 1920 | 1990 |
...........................................................
| 14 | 1930 to 2060 | 2050 |
...........................................................
| 15 | 2070 to 2210 | 2130 |
...........................................................
| 16 | 2220 to 2350 | 2150 |
2......….....................…............................1
*[1] located around side cargo door
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
26-14-05
ALL ú ú 04 Page 701 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
D. Zones 1 though 8 have individual sampling ports to sample the air. Zones 10 and 13 through 16 have orifices located in a piccolo tubes attached to the interior of the ceiling panels. Zones 9, 11 and 12 use a combination of individual sampling ports and piccolo tubes for air sampling.
TASK 26-14-05-107-001
2. Clean the Smoke Detection Tubing
________________________________
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 防火 FIRE PROTECTION 1(77)
