Helicopter external load operations for construction are governed by FAA 14 CFR Part 133, OSHA construction standards, and the aircraft operator's operations specifications. When you're delivering transmission tower sections with a Chinook, setting HVDC line hardware, or long-line hauling on remote sites — the critical lift plan is more complex than any ground crane pick.
Aircraft Categories
- Heavy lift (Chinook CH-47D, Skycrane S-64F) — 20,000+ lb capacity, transmission towers, wind turbine components
- Medium lift (Puma AS-332, Blackhawk UH-60) — 5,000-10,000 lb, transmission hardware, remote deliveries
- Light lift (AStar AS-350, MD500) — under 3,000 lb, personnel hoists, line stringing, remote pickup/delivery
Lift Plan Elements Specific To Helicopter Ops
- Aircraft identification (make, model, tail number, operator certificate)
- Pilot certification and hours in type
- Load carousel or long-line configuration with capacity
- Sling/pendant length
- Load weight verification
- Ground team qualification and briefing
- Fuel plan with staging locations
- Wind window at pickup, transit, and setdown
- Communication protocol (pilot to ground, ground to ground)
- Landing zone identification
- Emergency jettison protocol
- Weather monitoring and abort criteria
- Emergency response staging
Ground Crew Coordination
Ground crews must be briefed by pilot before operations begin. Every ground person needs to know:
- Approach direction of aircraft
- Signal system (radio primary, hand signals backup)
- Escape route if load drops
- Position during pickup and setdown
- Emergency communication procedure
- Stop-work authority (any person, any time)
What's In The Forbes Helicopter Longline Pack
- Chinook longline critical lift plan
- Medium helicopter external load plan
- Light helicopter line stringing plan
- Ground crew briefing checklist
- Landing zone assessment form
- Weather monitoring log
- Emergency response plan
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Frequently Asked Questions
What's the FAA regulation for helicopter external load?
14 CFR Part 133 — Rotorcraft External-Load Operations. Certificate holders (operators) must have specific approval for external load work. The operations specifications define load classes (A through D) with different requirements.
What's the difference between long-line and short-line ops?
Long-line (typically 100-250 foot sling) allows the pilot to see the load and setdown location while the rotor is well clear. Standard for construction delivery. Short-line (belly hook, 20-50 foot pendant) is faster but limits pilot visibility of the load. Different techniques, different pilot skills, different applications.
Do ground crews need special certification?
No FAA certification for ground personnel, but training and briefing are required. OSHA doesn't have a specific standard for ground crew on external load ops, but general construction safety, hazard communication, and PPE requirements apply. Best practice: documented training and briefing per operation.
How much wind can a Chinook lift in?
Chinook operational limits typically allow work up to 30-40 knots sustained wind, depending on load. Turbulence and gusts have more restrictive limits than sustained wind. Pilot has final authority on go/no-go. Get abort criteria in the lift plan and brief every crew member.
Can a helicopter operate at night for construction?
Only if the operator has night external load approval and the crew is trained/certified for night ops. Most utility construction long-line work is daylight only. Night ops are more common for firefighting or search/rescue.
What's emergency jettison?
If the load becomes uncontrollable or endangers the aircraft, the pilot can release (jettison) the load. Every lift plan must identify safe jettison zones — areas where the load can fall without endangering personnel or property. Ground crew and personnel must know jettison zones and stay clear of them during operations.