| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 21N-53-32132 | STEP | 20447- | |
| 1 | 21N-53-32131 | STEP | 20001-20446 | |
| 2 | 21N-54-31982 | BRACKET | 20001- | |
| 3 | 04205-11655 | PIN | 20001- | |
| 4 | 21N-54-31991 | COVER | 20001- | |
| 5 | 198-54-41982 | LOCK ASS'Y | 20001- | |
| 6 | 01010-81225 | BOLT | 20001- | |
| 7 | 01643-31232 | WASHER | 20001- | |
| 8 | 21N-54-31970 | BRACKET | 20001- | |
| 9 | 01010-81230 | BOLT | 20001- | |
| 10 | 01643-31232 | WASHER | 20001- | |
| 11 | 21N-54-32490 | LADDER | 20001- | |
| 12 | 21N-54-32680 | PLATE | 20001- | |
| 13 | 01016-51260 | BOLT | 20001- | |
| 14 | 01580-11210 | NUT | 20001- | |
| 15 | 21N-54-32690 | BRACKET | 20001- | |
| 16 | 01010-80820 | BOLT | 20001- | |
| 17 | 01643-30823 | WASHER | 20001- | |
| 18 | 01010-81240 | BOLT | 20001- | |
| 19 | 01643-31232 | WASHER | 20001- | |
| 20 | 21N-53-31362 | STEP | 20447- | |
| 20 | 21N-53-31361 | STEP | 20001-20446 | |
| 21 | 01010-81240 | BOLT | 20001- | |
| 22 | 01643-31232 | WASHER | 20001- | |
| 23 | 01010-81230 | BOLT | 20001- | |
| 24 | 01643-31232 | WASHER | 20001- | |
| 25 | 21N-54-39950 | STEP | 20001- | |
| 26 | 01010-81240 | BOLT | 20001- | |
| 27 | 01643-31232 | WASHER | 20001- | |
| 28 | 21N-53-31982 | BRACKET | 20447- | |
| 28 | 21N-53-31981 | BRACKET | 20001-20446 | |
| 29 | 01010-81230 | BOLT | 20001- | |
| 30 | 01643-31232 | WASHER | 20001- |