N40ANLearjet 35A2007-01-10 NTSB Accident Report

Substantial
None

Learjet 35AS/N: 35-271

Summary

On January 10, 2007, a Learjet 35A (N40AN) was involved in an incident near Columbus, OH. All 2 people aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: The pilot's failure to maintain aircraft control during an inflight maneuver which resulted in the design stress limits of the airplane being exceeded. A factor was the excessive airspeed encountered during recovery.

The airplane was substantially damaged during an in-flight recovery after the captain attempted an intentional aileron roll maneuver during cruise flight and lost control. The cargo flight was being operated at night under the provisions of 14 CFR Part 135 at the time of the accident. The captain reported the airplane was "functioning normally" prior to the intentional aileron roll maneuver. The captain stated that the "intentional roll maneuver got out of control" while descending through flight level 200. The captain reported that the airplane "over sped" and experienced "excessive G-loads" during the subsequent recovery.

This incident is documented in NTSB report CHI07CA058. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N40AN.

Accident Details

Date
Wednesday, January 10, 2007
NTSB Number
CHI07CA058
Location
Columbus, OH
Event ID
20070221X00205
Coordinates
39.813610, -82.927780
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2

Probable Cause and Findings

The pilot's failure to maintain aircraft control during an inflight maneuver which resulted in the design stress limits of the airplane being exceeded. A factor was the excessive airspeed encountered during recovery.

Aircraft Information

Registration
Make
LEARJET
Serial Number
35-271
Engine Type
Turbo-jet
Year Built
1979
Model / ICAO
35ALJ35
Aircraft Type
Fixed Wing Multi Engine
No. of Engines
2

Registered Owner (Historical)

Name
AIRNET SYSTEMS INC
Address
7250 STAR CHECK DR
Status
Deregistered
City
COLUMBUS
State / Zip Code
OH 43217
Country
United States

Analysis

The airplane was substantially damaged during an in-flight recovery after the captain attempted an intentional aileron roll maneuver during cruise flight and lost control. The cargo flight was being operated at night under the provisions of 14 CFR Part 135 at the time of the accident. The captain reported the airplane was "functioning normally" prior to the intentional aileron roll maneuver. The captain stated that the "intentional roll maneuver got out of control" while descending through flight level 200. The captain reported that the airplane "over sped" and experienced "excessive G-loads" during the subsequent recovery. The copilot reported that the roll maneuver initiated by the captain resulted in a "nose-down unusual attitude" and a "high speed dive." Inspection of the airplane showed substantial damage to the left wing and elevator assembly.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI07CA058