Individually Owned: 151,845
Corporate Owned: 143,699
Palo Alto Muni Airport
Aircraft Accident/Incident Report
Palo Alto, California 94303
Friday, August 7, 1987 17:29 PDT
NTSB Narrative Summary Released at Completion of Accident
A MIDAIR COLLISION OCCURRED ABT 2.8 MI WEST OF PALO ALTO ARPT (PAO) AS CESSNA 152, N152SC, WAS ON A LEFT X-WND DEP FM RWY 30 & MOONEY M20J, N5201Y WAS TRANSITTING THE ARPT TRAFFIC AREA (ATA) FM SE TO NW & DSCNDG FM 2400' TO 1500'. N152SC WAS ON TWR FREQ. N5201Y (ON A TRAFFIC WATCH FLT FOR A LCL RDO STN) HAD JUST BEEN GIVEN A FREQ CHG TO SAN CARLOS (SQL) TWR TO TRANSIT ITS ATA, WHICH WAS NEXT TO THE PAO ATA. THE LCL CTL PSN AT PAO WAS BEING WORKED BY A DEVELOPMENTAL CTLR (D/C) UNDER SUPVN OF THE TWR SUPVR. HE DIDN'T IDENT N5201Y ON HIS BRITE RADAR. THE SUPVR SAW A PSBL CONFLICT DEVELOPING & WAITED A FEW SEC BFR ISSUING AN ADZY TO SEE IF THE D/C WOULD SEE & RESOLVE IT. THE SUPVR THEN TRANSMITTED A TRAFFIC ADZY TO N152SC, BUT THERE WAS NO REPLY. ABT 9 SEC LTR, THE 2 ACFT CONVERGED & COLLIDED. NEITHER AIRCREW SAW THE OTR ACFTIN TIME TO AVOID A COLLISION, BUT BOTH WERE ABLE TO LND SAFELY. THE D/C HAD 8 HRS OF OJT IN THAT PSN. THE AIRSPACE WAS COMPLEX WHERE 5 ATA'S ADJOINED EACH OTHER; THE VARIABLE TCA FLOOR SEGMENTS RANGED FM 4000' OVER PAO TO 1500' OVER SQL.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 8/7/1987 |
| Event Day of the Week | Friday |
| Time of Event | 1729 |
| Event Time Zone | Pacific Daylight Time |
| Event City | PALO ALTO |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 94303 |
| Event Date Year | 1987 |
| Event Date Month | 8 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | PALO ALTO MUNI |
| Event Location Nearest Airport ID | PAO |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 5 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1730 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 95 |
| Weather Observation Facility ID | PAO |
| Elevation of weather observation facility | 5 |
| Distance of event from weather observation facility (units?) | 3 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 15 |
| Air Temperature at event time (in degrees celsius) | 22 |
| Dew Point at event time (in degress fahrenheit) | 14 |
| Wind Direction (degrees magnetic) | 340 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 12 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | 786 |
| Intensity of Precipitation | Unknown |
| 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 | 5 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 2612 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 7 1987 12:00AM |
| NTSB Notification Time | 1750 |
| Fiche Number and/or location -used to find docket information | 37730 |
| Date of most recent change to record | Dec 13 2000 2:43PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N152SC | N5201Y |
| NTSB Number | LAX87FA296A | LAX87FA296B |
| Missing Aircraft Indicator | N | N |
| Federal Aviation Reg. Part | Part 91: General Aviation | Part 91: General Aviation |
| Type of Flight Plan filed | None | None |
| Flight plan Was Activated? | -- | -- |
| Damage | Minor | Substantial |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | CESSNA | MOONEY |
| Aircraft Model | 152 | M20J |
| Aircraft Series Identifier | 152 | M20J |
| Aircraft Serial Number | 15280265 | 24-0585 |
| Certified Max Gross Weight | 1650 | 2740 |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | -- | -- |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | 2 | 4 |
| Number of Engines | 1 | 1 |
| Fixed gear or retractable gear | Fixed | Retractable |
| Aircraft, Type of Last Inspection | 100 Hour | Annual |
| Date of Last Inspection | Jun 10 1987 12:00AM | Mar 5 1987 12:00AM |
| Airframe hours since last inspection | 102 | 245 |
| Airframe Hours | 3618 | 9197 |
| ELT Installed | Yes | Yes |
| ELT Activated | No | No |
| ELT Aided Location of Event Site | No | Unknown |
| ELT Type | -- | -- |
| Aircraft Owner Name | KONDRATIEFF, CYNTHIA | DURLING, LINDSAY T. |
| Aircraft Owner Street Address | 1249 MARILYN COURT | 328 SEMILLON CIRCLE |
| Aircraft Owner City | MOUNTAIN VIEW | CLAYTON |
| Aircraft Owner State | CA | CA |
| Aircraft Owner Country | ||
| Aircraft Owner Zipcode | 94040 | 94517 |
| Operator is an individual? | -- | -- |
| Operator Name | PALO ALTO FLYING CLUB | |
| Operator Same as Owner? | No | Yes |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | No | Yes |
| Operator Street Address | 1903 EMBARCADERO RD | |
| Operator City | PALO ALTO | |
| Operator State | CA | |
| Operator Country | ||
| Operator Zip code | 94303 | |
| Operator Code | ||
| Owner has at least one certificate | None | None |
| Other Operator of large aircraft? | No | No |
| Certified for Part 133 or 137 Operation | Unknown | 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) | Instructional | Aerial Observation |
| Second Pilot on Board | Yes | No |
| Departure Point Same as Event | Yes | No |
| Departure Airport Code | PAO | CCR |
| Departure City | CONCORD | |
| Departure State | CA | |
| Departure Country | ||
| Departure Time | 1726 | 1630 |
| Departure Time Zone | PDT | PDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere | dest & departure same, accident can occur anywhere |
| Destination Airport Code | PAO | CCR |
| Destination City | ||
| Destination State | ||
| Destination Country | ||
| Specific Phase of Flight | Climb | Descent |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM | Jan 2 2001 10:35AM |
| User who most recently changed record | dbo | dbo |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | 30 | 30 |
| Runway Length | 2500 | 2500 |
| Runway Width | 65 | 65 |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |