BEECHCRAFT Duke 60, A-60, Duke A-60, Duke B-60 Exhaust System Itemized Parts List
| Item | Part # | Description | Condition |
|---|---|---|---|
| 01 | 77944 | STACK ASSY – LH – 4 BOLT FLANGE | OVERHAUL |
| 01 | LW78934 | EXHAUST MANIFOLD – LH – E1C4 ENGINE | OVERHAUL |
| 02 | 77943 | STACK ASSY – RH – 4 BOLT FLANGE | OVERHAUL |
| 02 | LW10374 | EXHAUST MANIFOLD – RH – E1C4 ENGINE | OVERHAUL |
| 03 | 77424 | RISER – LH – FORWARD – 4 BOLT FLANGE | OVERHAUL |
| 04 | 77427 | RISER – RH – FORWARD – 4 BOLT FLANGE | OVERHAUL |
| 05 | 77928 | RISER – LH – CENTER – 4 BOLT FLANGE | OVERHAUL |
| 06 | 77929 | RISER – RH – CENTER – 4 BOLT FLANGE | OVERHAUL |
| 07 | 77431 | RISER – LH – REAR – 4 BOLT FLANGE | OVERHAUL |
| 08 | 77428 | RISER – RH – REAR – 4 BOLT FLANGE | OVERHAUL |
| 09 | 77930 | ADAPTER | OVERHAUL |
| 10 | 77429 | ELBOW – RH – REAR | OVERHAUL |
| 11 | 77430 | ELBOW – ADAPTER – STRAIGHT | OVERHAUL |
| 11 | 78187 | ELBOW ADAPTER – RH – REAR – E1C4 ENGINE – CURVED | OVERHAUL |
| 12 | LW11005 | TRANSITION | OVERHAUL |
| 13 | 77434 | ELBOW – LH – REAR | OVERHAUL |
| 13 | 78276 | ELBOW – LH – REAR – E1C4 ENGINE | OVERHAUL |
| 14 | 60-950024-13 | TAILPIPE – 60 DUKE ROUND ROUND | OVERHAUL |
| 14 | 60-950018-83 | TAIL PIPE – 60 DUKE OVAL | OVERHAUL |
| 15 | 60-950027-7 | WASTEGATE OVERBOARD | OVERHAUL |
Details
Duke 60, A60, Duke A60 (71&72) 1968-1972 LYC TIO-541-E1A4 (380 H.P.)
1973 Duke A60, Duke B60
1973-1982 LYC TIO-541-E1C4 (380 H.P.)
Beech 56TC 67 thur 70
LYC TIO-541-E1B4
Service Bulletin 479 Mandatory
Inspect transition for cracks internally & externally
Inspect tailpipe for internal pitting
Oval style tailpipe– Inspect inner baffle for cracks, burns or pitting