CTSP Aerial and Tree Climber Rescue Procedures — Questions and Answers
Question 1: According to ANSI Z133, when must an aerial rescue plan be established for a tree climbing operation?
- Only when the climber will exceed 50 feet in height
- Only when a new employee is climbing for the first time
- Before climbing operations begin, regardless of tree height (Correct answer)
- After a near-miss incident has been documented
Correct answer: Before climbing operations begin, regardless of tree height
ANSI Z133 requires that a rescue plan be established before any climbing operations begin, regardless of height or climber experience. The plan must be communicated to all crew members and a trained rescuer must be present on site.
Question 2: An aerial lift operator becomes unresponsive in the bucket 30 feet off the ground. What is the preferred first rescue action for ground crew?
- Climb to the bucket using a ladder and administer first aid in the elevated position
- Attempt to lower the bucket using the ground controls at the base of the machine (Correct answer)
- Cut the hydraulic lines to allow gravity to lower the boom
- Wait for emergency services and do not approach the machine
Correct answer: Attempt to lower the bucket using the ground controls at the base of the machine
Most aerial lift machines have ground-level override controls specifically for rescue situations. Ground crew should use these controls to lower the bucket safely. Cutting hydraulic lines or unauthorized climbing creates additional hazards and is not an approved rescue method.
Question 3: When performing a pick-off rescue on an incapacitated tree climber, what is the rescuer's primary concern after securing the victim?
- Collecting and securing the victim's equipment before descent
- Maintaining two points of attachment for both the rescuer and the victim throughout the descent (Correct answer)
- Notifying the crew leader before moving the victim any distance
- Removing the victim's harness to reduce weight during descent
Correct answer: Maintaining two points of attachment for both the rescuer and the victim throughout the descent
During a pick-off rescue, the rescuer must maintain two points of attachment (both rescuer and victim are secured) throughout the descent. Removing a harness mid-rescue or descending with a single attachment point creates unacceptable fall risk for both parties.
Question 4: Which condition would most likely indicate that a climber requires an immediate aerial rescue rather than a self-rescue?
- The climber reports mild fatigue after extended pruning work
- The climber signals they need a new saw blade delivered
- The climber is unconscious and suspended in their saddle (Correct answer)
- The climber has descended below their planned working height
Correct answer: The climber is unconscious and suspended in their saddle
An unconscious climber suspended in their saddle cannot self-rescue and requires immediate intervention. Suspension trauma (harness hang syndrome) can become life-threatening within minutes. An unconscious climber represents the textbook scenario for an aerial rescue response.
Question 5: How often must crew members who may be required to perform an aerial rescue demonstrate competency in rescue procedures, according to best practices aligned with ANSI Z133?
- Once, at time of initial hire
- Every five years during recertification
- Annually, with documented practice rescues (Correct answer)
- Only after an actual rescue incident has occurred
Correct answer: Annually, with documented practice rescues
ANSI Z133 and TCIA best practices require that rescue competency be maintained through regular — at minimum annual — documented practice. Skills degrade without rehearsal, and a crew that has never practiced a rescue will struggle to execute one effectively under stress.
Question 6: What is suspension trauma (also called harness hang syndrome), and why is it relevant to aerial rescue planning?
- Bruising caused by an ill-fitting saddle during long climbs, treated with padding adjustments
- A potentially fatal condition caused by prolonged suspension in a harness, which can cause blood pooling and cardiac arrest (Correct answer)
- Rope burns on the hands from emergency descent, treated with first aid on the ground
- Muscle strain in the legs from standing in a bucket for extended periods
Correct answer: A potentially fatal condition caused by prolonged suspension in a harness, which can cause blood pooling and cardiac arrest
Suspension trauma occurs when a person hangs motionless in a harness, restricting venous blood return from the legs. Even a relatively short period of suspension can lead to unconsciousness and death. Rescue plans must account for rapid extraction and proper post-rescue positioning (keeping the victim upright, not laying them flat).
CTSP Aerial and Tree Climber Rescue Procedures
According to ANSI Z133, when must an aerial rescue plan be established for a tree climbing operation?