PS Magazine - TB 43-PS-646
PS, The Preventative Maintenance Monthly
ISSUE 646
SEPTEMBER 2006
8A#979
6?
A(8#39
-
ECHANICS AND WILOTS, YOXR !(.9[$^S REGXLATED TRANSFORMER RECTIvER XNIT
(
2/42J
)
, \3\
915U.U1.[[U.8:11, CAN LOSE ELECTRICAL WOtER AND YOX tON^T NOTICE IT@
POX^LL GET AN INDICATION THAT AN 2/42J HAS FAILED BECAXSE OF THERMAL OVERLOAD, BXT NOT
tHEN THERE^S A LOST GROXND OR OTHER ELECTRICAL WROBLEM@
4HE TtO 2/42JS WROVIDE WRIMARY $# ELECTRICAL WOtER FOR YOXR BIRD@ 3INCE THE MAINTENANCE
DATA RECORDER
(
-$2
)
DOESN^T ALERT YOX TO A 2/42J ELECTRICAL FAILXRE, THE BIRD COXLD HAVE A
COMWLETE FAILXRE OF WRIMARY $# ELECTRICAL WOtER IF ONE IS ALREADY OXT AND THE OTHER ONE
GOES OXT IN wIGHT@
3OME AIRCRAFT HAVE wOtN FOR HOXRS tHEN ONLY ONE 2/42J tAS tORKING AND THAT CAN WXT
YOX AND YOXR BIRD IN HARM^S tAY@
!-#=- MESSAGE !(.9[.U8.!3!-.U8 TELLS YOX TO INSWECT BOTH 2/42JS tITHIN 7U DAYS
AND IMWLEMENT A 158.HOXR INSWECTION TO WERFORM AN 2/42J VOLTAGE CHECK AND TO CHECK THE
TERMINAL CONNECTIONS FOR CONDITION AND SECXRITY@
QHEN YOX WOtER XW YOXR
BIRD, CHECK THE BACK OF THE
2/42J ON BOTH SIDES OF THE
FORtARD TRANSMISSION BAY
AREA@ -AKE SXRE THE FAN IS
BLOtING AIR ON EACH ONE
AND THERE^S AIR wOt BEFORE
YOX TAKE OFF@
)F AN 2/42J IS NOT tORKING,
CALL YOXR !6J- SHOW AND
THEY tILL TEST IT FOLLOtING
THE !3!- INSTRXCTIONS TO
MAKE SXRE YOXR AIRCRAFT STAYS
MISSION READY@
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