Individually Owned: 150,657
Corporate Owned: 137,281
Lake Hood Airstrip Airport
Aircraft Accident/Incident Report
Anchorage, Alaska 99502
Monday, September 5, 2011 13:41 AKD
NTSB Narrative Summary Released at Completion of Accident
The pilot was landing his tailwheel-equipped airplane on a dry, gravel runway at the conclusion of a local area flight. After landing, the pilot applied the brakes to slow the airplane, and, while depressing both brake pedals, the left brake pedal unexpectedly went to the floor. The airplane swerved to the right, went off the right side of the runway, and nosed over in an area of soft, marshy, wet tundra, sustaining substantial damage to the rudder, left wing, and left aileron. A postaccident examination revealed that a hydraulic brake supply line fitting near the airplane's fuselage had broken, which resulted in a loss of brake pressure to the left brake. The hydraulic brake line was not secured to the landing gear strut as required, which allowed the line to flex and bend at the fitting during flight. The pilot reported that he recently rebuilt the airplane himself.
NTSB Probable Cause Narrative
The fracture of a hydraulic brake line fitting due to incorrect installation of the brake line by the pilot/owner, which resulted in a loss of brake pressure and subsequent loss of directional control during the landing roll.
Event Information
| Type of Event | Accident |
| Event Date | 9/5/2011 |
| Event Day of the Week | Monday |
| Time of Event | 1341 |
| Event Time Zone | -- |
| Event City | Anchorage |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99502 |
| Event Date Year | 2011 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 611112N |
| Event Location Longitude | 1495755W |
| Event Location Airport | Lake Hood Airstrip |
| Event Location Nearest Airport ID | Z71 |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 73 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1240 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | PALH |
| Elevation of weather observation facility | 71 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 7000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 11 |
| Dew Point at event time (in degress fahrenheit) | 7 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.03 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 29420 |
| NTSB Notification Source | ANC FAA ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Feb 1 2012 2:53PM |
| User who most recently changed record | snyg |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5406C |
| NTSB Number | ANC11CA095 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 170A |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 19440 |
| Certified Max Gross Weight | -- |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | -- |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | C91 |
| Aircraft Owner Name | Joseph Gugel |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | ANCHORAGE |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99504-4685 |
| Operator is an individual? | No |
| Operator Name | Joseph Gugel |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | ANCHORAGE |
| Operator State | AK |
| Operator Country | USA |
| Operator Zip code | 99504-4685 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | Z71 |
| Departure City | Anchorage |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | Z71 |
| Destination City | Anchorage |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 21 2011 8:25PM |
| User who most recently changed record | stam |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 31 |
| Runway Length | 2200 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |