Individually Owned: 150,657
Corporate Owned: 137,281
Olympia Airport
Aircraft Accident/Incident Report
Olympia, Washington 98501
Tuesady, November 19, 1996 8:10 PST
NTSB Narrative Summary Released at Completion of Accident
The pilot stated that during climbout on an IFR flight, he frequently checked the wings for ice accumulation, noting what appeared to be a 'mere' trace of ice. At about 13,000 feet msl, with almost no climb at 125 knots indicated airspeed, the pilot pulled the yoke back a little to climb, and the aircraft began to shudder. The pilot then decided to divert, again checking the wings, seeing what he described as a trace of ice. He said he cycled the deice boots with no apparent change in wing appearance. While on approach, he again cycled the boots between 3000 and 2000 feet msl. The pilot stated that about 20-30 feet above the surface, he started a slight roundout, but when he eased back on the yoke, the airplane shuddered and the nose did not raise. At that point, he was ready to touch down, so he pulled back on the yoke while adding power; however, the airplane landed hard and was damaged. Later, the surface deice system was tested. The boots did not hold pressure due to multiple wing boot holes and a shuttle valve internal leak. Functional tests revealed that the control valves did not direct proper pressure to the system, and that the shuttle valves did not direct pressure properly to the boots (there was leakage to the vacuum side of the valves).
NTSB Probable Cause Narrative
inoperative deicing equipment, due to multiple wing boot holes and malfunctioning control/shuttle valves; subsequent build-up of airframe (wing) ice; and failure of the pilot to maintain adequate airspeed during the flare for landing. Factors relating to the accident included: the adverse weather (icing) conditions, and inadequate maintenance concerning the deicing equipment.
Event Information
| Type of Event | Accident |
| Event Date | 11/19/1996 |
| Event Day of the Week | Tuesday |
| Time of Event | 810 |
| Event Time Zone | Pacific Standard Time |
| Event City | OLYMPIA |
| Event State | WASHINGTON |
| Event Country | -- |
| Zipcode of the event site | 98501 |
| Event Date Year | 1996 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | OLYMPIA |
| Event Location Nearest Airport ID | OLM |
| 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 | 206 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Dawn |
| Lowest Ceiling Height | 400 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 1 |
| Air Temperature at event time (in degrees celsius) | -1 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 100 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Moderate |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1568 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Nov 19 1996 12:00AM |
| NTSB Notification Time | 830 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 8 2000 10:28AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8005Q |
| NTSB Number | SEA97LA030 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 421B |
| Aircraft Series Identifier | 421B |
| Aircraft Serial Number | 421B-0005 |
| Certified Max Gross Weight | 7450 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 8 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Oct 12 1996 12:00AM |
| Airframe hours since last inspection | 36 |
| Airframe Hours | 3406 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | RONALD W. GARNER |
| Aircraft Owner Street Address | P. O. BOX 800 |
| Aircraft Owner City | BUCKLEY |
| Aircraft Owner State | WA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 98321 |
| Operator is an individual? | -- |
| Operator Name | CROSSINGS AVIATION |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1302 26TH AVE NW |
| Operator City | GIG HARBOR |
| Operator State | WA |
| Operator Country | |
| Operator Zip code | 98335 |
| Operator Code | NOQA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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) | Business |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | TIW |
| Departure City | TACOMA |
| Departure State | WA |
| Departure Country | |
| Departure Time | 640 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | ONO |
| Destination City | ONTARIO |
| Destination State | OR |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 17 |
| Runway Length | 5419 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |