ChecklistC130_APR69Part2

Checklist C-130 Apr 69 Part 2

METER READINGS

MALFUNCTION

PROBABLE CAUSE

Normal

1. Fuses on PP1073A
blown
2. Defective PP1073A
3. Defective IP 268

IP 268 blank

Spoking on IP 268

Normal

1. Defective IP 268
2. Defective PP1073A

Normal

1. Defective C 1242
2. Defective RT 289B

No STC, IAGC or
FTC control

Normal

1. Defective PP1073A
2. Defective IP 268

No focus control
on IP 268, IP 239
normal

Normal

1. Defective IP 239

No range delay pip

No control of
range delay

Normal

1. Defective IP 239

Normal

1. Defective AS 653A
3. Defective C1242

No change in target on movement of tilt knob

Normal

1. Defective PP1073A
3. Defective IP 239

IP 268 & IP 239 have short sweep on one or all
ranges

Radial bright lines starting approx 2/3 out from center of scopes and extending to edge

Normal

1. Defective RT 289B

Normal

Azimuth stab. inop

1. Check N-1 circuit breaker
2. Check stab switch
3. Defective C 1242
4. Defective AM 853A
5. Defective AS 653A
6. N-1 amplifier
7. N-1 tie in

APN 59 OPERATING PRECAUTIONS

Before turning the system off (STANDBY to OFF), make sure that ?STAB? switch in
control box C 1242 is set to the down position.� This precaution assures proper stowing of the antenna.

APR 69�� 8

H. APN-70 LORAN

1. Allow for one minute warm up.

2. Perform the counter alignment check on function five;

a. align the sawtooth traces.� The counters should read even hundreds +/- two microseconds
and the error should be constant over the entire range of the set.� If the error is greater, the set
should be rejected, but in an emergency the set can be used if the error is constant and the
correction is applied to all readings.

3. Perform the trace drop off check on function four:

a. Rotate the knob until the bottom trace disappears.� This should be accomplished on
all ?R? rates, on both X and Y delays.� See the table below for proper ?R? rate drop off readings:

(1) Reject the set if the error is greater than +/- ten microseconds

(2) Reject the set if any error is not constant through the entire delay channel

(3) DO NOT ADD THIS CORRECTION TO LORAN COUNTER READINGS FOR FIXING PURPOSES

TABLE OF DROP OFF R-RATES

H-7�� 13,025�� L-7�� 18,025�� S-7�� 23,025

H-6�� 13,075�� L-6�� 18,075�� S-6�� 23,075

H-5�� 13,125�� L-5�� 18,125�� S-5�� 23,125

H-4�� 13,175�� L-4�� 18,175�� S-4�� 23,175

H-3�� 13,225�� L-3�� 18,225�� S-3�� 23,225

H-2�� 13,275�� L-2�� 18,275�� S-2�� 23,275

H-1�� 13,325�� L-1�� 18,325�� S-1�� 23,325

H-0�� 13,375�� L-0�� 18,375�� S-0�� 23,375

Malfunction

Remedy

No power to set

Check both circuit breakers on radio junction box - Reset

Have pedestals, but no pulses

1. Check antenna wire to front of receiver
2. Check connections to coupler and HF ant.

3. Turn off HF radio

If the antenna coupler is found to be defective, the coupler may be by-passed by jumping
from the HF antenna to the loran receiver.�
CAUTION: DO NOT LEAVE THE LORAN SET ON WHILE TRANSMITTING ON EITHER HF RADIO.

Apr 69�� 9

I. N-1 COMPASS

1. Allow for a ten minute warm up

2. Insure all circuit breakers are in (five)

3. Set the latitude control knob to ?OFF? and synchronize the system by centering the annunciator pointer. �
Cross check with stand-by compass to prevent 180� ambiguity.

4. Set the heading pointer several degrees to the right with the synchronizer knob.� The annunciator pointer
should deflect about 30 degrees to the left.� The white dot should rotate CCW.� Repeat in the opposite direction.

5. Set latitude pointer to a northerly latitude.� The white dot should be rotating CW.� Set pointer to zero degrees.
The white dot should be stationary.� Set pointer to a southerly latitude.� The dot should be rotating CCW.

6. Check RMI movement.� With the compass in GYRO operation slowly rotate the synchronizer
knob 360 degrees, stopping at each 90 degrees increment, first CW then CCW.� All repeaters
should follow smoothly.� Master indicator pointer should operate smoothly.

THIS COMPLETE CHECK WILL BE REQUIRED ON EVERY FLIGHT.

Malfunction

SOLUTION

Master indicator heading pointer continuously rotates through 360 degrees

Pull the 5 circuit breakers that supply power to the N-1.� Reset all circuit breakers.

N-1 will not operate properly or at all in slave position

Try N-1 in gyro operation

�NOTE: A completely inoperative compass has NO EFFECT

on tracking to or from a TACAN or OMNI station.

J. ADF # 1 and # 2

1. Allow for a five minute warm up (check after N-1)

2. Check alignment of tuner

3. Tune to a known station on any band.� Tune for maximum signal in CW position
by listening for lowest pitch of hum.

4. Check the needle in the ADF position to make sure the needle is pointing to correct bearing.*

5. Go to loop and check needle movement

* NOTE: A 180 degree error in bearing can result if aircraft is grounded.

Malfunction

SOLUTION

Both ADF?s inoperative

Check aircraft power.

ADF will not tune or loop

Check circuit breaker on radio junction box.� Reset

Week signal in either CW or Voice

Check position of filter switch

ADF will not loop

Check to make sure N-1 circuit breakers are in

APR 69 �� 10

K. DOPPLER NAVIGATION SYSTEM

1. AN/APN 147 System Components

a. Antenna

b. Receiver Transmitter

c. Frequency tracker

d. Groundspeed Drift Angle Indicator

e. Control (OFF, SLEW, ON)

2. AN/APN 35 System Components

a. Control Indicator (main cross track-distance to go)

b. Computer

c. Auxiliary Cross Track

d. Pilots Multiple indicator

Symptom

Corrective Action

No memory warnings light in slew
   No integral lighting
   Unable to slew G/S or drift
   Computer will not count
   No response to change in compass
   Will not lock on

Check 28 volt
circuit breaker

Inverter lamp illuminates with switch in the ON   position
   Computer OFF lamp illuminated
   Computer will not count
   Will not lock on
   No response to change in compass

Check 115 volt
circuit breaker

No memory warning light in slew
   Unable to slew G/S or drift
   Computer will not count
   Will not lock on

Check fuse F 01
Tracker

Unable to slew G/S or drift
   Computer will not count
   No response to change in compass
   Will not lock on

Check fuse F 02
Tracker

Unable to slew G/S or drift
Computer will not count
Will not lock on

Check fuse F 04
Tracker

Check fuse F 05 &
Fuse F 06 (tracker)

Will not lock on

Computer will not count
Computer OFF lamp illuminated
No response to change in compass

Check fuse F 101
Computer

Computer will not count
No integral lighting
No response to change in compass

Check fuse F 102
Computer

No response to change in compass

Check fuse F 103
Computer

Will not lock on
Computer will not count

Check fuse F 03 &
Fuse F 09 (tracker)

APR 69 �� 11

L. VOR and TACAN (Optional)

1. Tune in local VOR and Tacan station, check identification, bearing and distance information.

M. LIAISON #1 and #2 (Optional)

1. Tune in 5 Mc., 10 Mc., and 15 Mc. on Liaison #1.� Tune JMHB, RBKH, and VLYK on Liaison #2.

2. Obtain time hack for rating of watches

N. WRITE UP ALL DISCREPANCIES USING THE TROUBLE SHOOTING GUIDE AS REFERENCE.

THE DAY OF THE FLIGHT

I. WEATHER CHECK

A. Pick up cross section

B. Make final route determination

II. ROUTE

A. Check NOTAMS

B. Check FLIP

C. Refine chart

D. Complete TAC Form 26 in duplicate

�� 1. Complete cruise control information through planned total fuel

E. Give briefing

F. PICK UP CLASSIFIED OVERWATER SIF SETTING

III. CHECK AIRCRAFT

A. Exterior

B. Enroute publications and letdowns

C. navigator?s lights

D. Radar

E. Loran

F. N-1 Compass

G. ADF?S

H. Doppler

I. Monitor station, Start Engine, Taxi and Take Off times

IV. BEFORE TAKEOFF

A. complete C-130 and minimum lines on fuel graph

B. Copy clearance

C. Give suggested departure compass heading and magnetic course

D. Face forward and buckle seat belt and shoulder harness

V. TAKE OFF

A. Record take off time and fuel in log and forms

B. Complete ETA column of TAC Form 26

C. Record ETA to destination on log

VI. LEVEL OFF

A. Record level off fuel and position when aircraft reaches 290 TAS

B. Take heading and true airspeed checks

APR 69 �� 12

(2) Mag Course to DZ

(3) IAS

(4) Altitude (AGL/MSL)

I. Slow Down

(1) Location (See MCM 55-130)

(2) Description of point

(3) Type of slow down (level, Asc, Desc)

(4) Drop altitude (AGL/Indicated)

(5) Air speed

J. DZ Information

(1) DZ name

(2) DZ description

(a) Size

(b) Elevation

(d) Markings and Lighting

(3) CARP location

(4) Timing Point

(a) Description

(b) Time to release

(5) DZ length in seconds

(6) Drop restrictions

(a) Winds

(b) DZ restrictions

(7) Race Track

(a) Right /left turn

(b) Time in race track

K. Departure From DZ

(1) Mag Heading

(2) Altitude

(3) IAS (140 KIAS)

(4) Speed up (2 min after element leads red light)

L. Drop Zone to CEP

(1) Check point and description

(2) Time

M. Combat Exit Point

(1) Location

(2) Description

(3) Altitude

(4) IAS

317 TAW1�� Feb 69

�� Page 4

N. Route to Airfield

(1) Checkpoint description

(2) Time

O. Salvo Area

(1) Right / left turn off DZ

(2) Mag. Hdg.

(3) Description

P. Emergency Airfields

(1) Name

(2) Location

Q. Obstacles

R. Emergency Safe Altitude

S. Special Use Air Space

(1) Restricted Areas

(2)Sensitive areas, (parachute jump areas, hospitals, schools, turkey farms etc.)

T. Uses of Radar wingmen

U. Time Hack

317 TAW�� 1 Feb 69

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