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05-51-19
ALL ú ú 01 Page 208 ú May 28/99
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A
757
MAINTENANCE MANUAL
S 212-054
(10) Examine the wingtip.
(a) If the wingtip shows lightning strike damage, do a visual inspection of the fuel vent surge tanks. 1) Open the access panel for the affected surge tank
(AMM 28-11-03/401).
2) Do a visual inspection of the surge tank and the components in the tank (AMM 28-11-00/201). a) If damage is found, repair or replace the damaged
component. 3) Close the surge tank access panel (AMM 28-11-03/401).
S 212-033
(11) Examine the static dischargers.
(a)
Visually examine all dischargers to make sure they are in place, not broken and installed correctly on their mounting retainers.
(b)
Examine the dischargers for damage as shown by a burned or rougher coating and pits in the metal discharger retainers.
(c)
Examine the dischargers for broken, bent, or blunt tungsten pins. 1) If bent pins are found, replace the discharger assembly. 2) If broken pins are found, replace the discharger assembly.
(d)
Look for deterioration of the discharger coating or damage to the tip cup. 1) Deterioration to the leading edge of the discharger must
not extend back more than 1/3 of the width of the discharger.
(e)
Do a resistance test if you find a damaged static discharger (AMM 23-61-01).
S 212-043
(12) Examine the air data sensors for signs of lightning strike damage.
(a)
Pitot Probes: Do an operational test of the pitot probes if there are signs of lightning strike damage to the pitot probes (AMM 34-12-00).
(b)
Static Ports: Do an operational test of the pitot static system if there are signs of lightning strike damage near the static port (AMM 34-11-00).
(c)
AOA Vanes: Do an operational test if there are signs of lightning strike damage to the AOA vanes (AMM 34-12-00).
(d)
TAT Probe: Do an operational test of the TAT probes if there are signs of lightning strike damage to the probe (AMM 34-12-00).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
05-51-19
ALL ú ú 01 Page 209 ú Sep 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 212-038
(13) Examine the antennas (if installed) for these systems for damage:
(a)
HF (If installed) (AMM 23-11-00/001)
(b)
VHF (AMM 23-12-00/001)
(c)
ILS (AMM 34-31-00/001)
(d)
Marker Beacon (AMM 34-32-00/001)
(e)
RA (AMM 34-33-00/001)
(f)
VOR (AMM 34-51-00/001)
(g)
ATC (AMM 34-53-00/001)
(h)
DME (AMM 34-55-00/001)
(i)
ADF (AMM 34-57-00/001)
(j)
TCAS (if installed) (AMM 34-45-02/401)
(k)
Airborne Telephone (if installed)
(l)
Nose Radome (AMM 53-12-01/201)
(m)
WXR Antenna (34-43-00/001)
S 212-039
(14) Examine the nose radome and the WXR antenna as follows (AMM 53-12-01/201 and 34-43-00/001):
(a)
Examine the radome for pin holes, punctures, and paint that has chipped.
(b)
Make sure the radome bonding straps are attached correctly to the airframe.
(c)
Examine the lightning diverter strips, and repair or replace them if there is damage.
(d)
If there is damage to the radome, examine the WXR antenna and waveguide for damage.
TASK 05-51-19-212-055
3. Examine Internal Components for Lightning Strike________________________________________________
A. References
(1)
AMM 34-23-00, Standby Compass System
(2)
FIM 28-41-00/101 Fuel Quantity BITE Procedure
B. Examine the Airplane Internal Components
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