Inspection, Packing, and Maintenance of Parachutes
What this domain tests
This domain tests the inspection-and-packing sequence: what to look for, when to stop, how to pack to approved data, and how to document the result. Questions often ask whether a discrepancy permits packing.
Core rules and concepts
- Inspection before packing. Check canopy fabric, seams, lines, risers, harness, container, pilot chute, bridle, connector links, ripcord, and AAD. Look for stains, acid damage, UV degradation, abrasion, broken lines, bent hardware, corrosion, and previous repairs. A discrepancy is corrected or referred before packing.
- Packing to data. Follow the manufacturer’s packing instructions and the parachute’s packing data card. Verify line continuity, line stowage, closing loop length, pin tension, and pilot chute seating. Do not improvise a closing sequence.
- Intervals and records. Emergency parachutes require repacking within 180 days under 14 CFR 91.307(c). Record the pack date, due date, parachute identification, and rigger certificate number. A new packing card replaces the old one; the old card is not the authority for the next cycle.
- Storage and care. Store parachutes clean, dry, and protected from UV, oils, acids, and vermin. Do not store a wet canopy in a closed container.
Worked example
During inspection, a suspension line shows a heavily fuzzy, worn section near the connector link. The line is still attached and the canopy fabric is clean. Should the rigger pack it? No. Abrasion at a high-load point reduces line strength, and internal damage cannot be ruled out by appearance. The rigger should stop, replace the line with approved material, verify line trim and attachment, and record the maintenance before packing. Packing over the worn line would hide a known defect.
Traps that cost marks
- Packing because the discrepancy is “still within limits” without checking approved data.
- Reusing an old packing card or copying its due date instead of computing a new 180-day date.
- Overlooking AAD status, battery, or installation requirements.
- Treating “no visible damage” as equivalent to “airworthy.”