# Accident 19980523610499A: Lear 24B, Orlando, FL, May 23, 1998 - Type: FAA accident report (Accident/Incident Data System), as reported - Date: May 23, 1998, 03:30 local time - Place: Orlando, FL - Airport: Orlando Executive Airport - Damage: Substantial damage - Phase of flight: Roll-Out (Fixed Wing) - Operating rules: Air taxi and commuter (Part 135) - Operator: FOVA - Location: 28.5455° N, 81.3329° W: Placed by OpenAirDocs at ORLANDO EXEC (ORL), within about a mile (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=28.5455&lon=-81.3329&mi=10 - Aircraft: N100DL, a cancelled registration (https://openairdocs.org/deregistered/N100DL-2011-03-03) (OpenAirDocs) - Registry model: Learjet 24B (registry code 5170306, https://openairdocs.org/model/learjet-24b) (OpenAirDocs) - Reported make and model: LEAR 24B - Reported engine: GE CJ6106 - People aboard: 6 - Fatal injuries: 0 - Pilot flight hours: 18,395 total, 318 in this make and model, 125 in the last 90 days - NTSB investigation: [NTSB ATL98LA078](https://openairdocs.org/ntsb/ATL98LA078) (OpenAirDocs) - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/19980523610499A ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. FLAPS FAILED EXTEND BRAKES FAILED. USED DRAG CHUTE AND REVERS AND EMERGENCY BRAKES BUT OVERRAN RUNWAY. ON MAY 23,1998, ABOUT 0330 EASTERN DAYLIGHT TIME, A LEARJET 24-B,N100DL,OVERRAN THE END OF RUNWAY 07 ON LANDING ROLL AT ORLANDO EXECUTIVE AIRPORT (ORL) IN ORLANDO, FLORIDA. THE AIRPLANE WAS OWNED BY AJM AIRPLANE COMPANY AND OPERATED BY PANTHER AVIATION FOR THE PURPOSE OF TRANSPORTING A HUMAN ORGAN TRANSPLANT TEAM. THE FLIGHT WAS CONDUCTED UNDER TITLE 14 CFR PART 135, AND INSTRUMENT FLIGHT RULES. VISUAL METEOROLOGICAL CONDITIONS PREVAILED AND AN IFR FLIGHT PLAN WAS FILED. THE AIRLINE TRANSPORT PILOT (ATP), FIRST OFFICER AND FOUR PASSENGERS WERE NOT INJURED AND THE AIRPLANE RECEIVED SUBSTANTIAL DAMAGE. THE ON-DEMAND NON-SCHEDULED PASSENGER FLIGHT ORIGINATED IN MIAMI, FLORIDA AT 1230. ACCORDING TO THE PILOT, WHILE ON APPROACH TO ORL, AT 1500 FEET MSL, HE ASKED FOR "FULL FLAPS" AND NOTICED THAT THE FLAP INDICATOR HAD NOT MOVED FROM THE 20 DEGREE POSITION. ACCORDING TO THE PILOT, THE AIRPLANE TOUCHED DOWN ON THE FIRST 1000 FEET OF RUNWAY AT APPROXIMATELY 115 KNOTS, SPOILERS WERE EXTENDED AND THE ENGINES WERE REVERSED. "AT THE PILOTS' REQUEST, THE FIRST OFFICER DEPLOYED THE DRAG CHUTE FOLLOWED BY APPLICATION OF THE EMERGENCY BRAKES. THE FIRST OFFICER STATED, "UPON DOWNWARD MOVEMENT OF THE EMERGENCY BRAKE HANDLE, HE FELT THE AIRPLANE YAW. HE THEN PULLED UP ON THE HANDLE, EVACUATING THE PRESSURE AND NEGATING ANY BRAKING ACTION." THIS ACTION TOOK PLACE SEVERAL TIMES DURING THE LAND ING ROLL. GATES' LEARJET FLIGHT TRAINING MANUAL (PAGE 105) STATES, "IN USING THE EMERGENCY BRAKE LEVER, SLOW STEADY DOWNWARD PRESSURE IS REQUIRED. EACH TIME THE LEVER IS ALLOWED TO RETURN UPWARD TO THE NORMAL POSITION, NITROGEN IS EVACUATED OVERBOARD. BRACE YOUR HAND SO YOU WILL NOT ALLOW THE LEVER TO MOVE UP AND DOWN INADVERTENTLY ON A BUMPY RUNWAY" AFTER COLLIDING WITH THE INSTRUMENT LANDING SYSTEM (ILS) BACK COURSE ANTENNAE FOR RUNWAY 25, THE AIRPLANE WAS EVACUATED. ACCORDING TO THE FAA INSPECTOR WHO VISITED THE SITE, THE RIGHT WING MAIN ATTACHMENT BRACKETS WERE BROKEN ON IMPACT AND THE WING WAS PUSHED REARWARD APPROXIMATELY 3 INCHES IN THE FUSELAGE. DAMAGE TO SEVERAL FUEL AND HYDRAULIC LINES IN THE WING AREA WAS NOTED. INSPECTOR'S NOTED EVIDENCE OF HYDRAULIC LEAK(S) IN THE AFT FUSELAGE, OUTSIDE BOTTOM OF THE FUSELAGE AND ON THE DRAG CHUTE. SOURCES OF LEAK(S) WERE NOT ASCERTAINED DUE TO THE DAMAGE INFURRED BY AIRPLANE IMPACT. A POSSIBLE LEAK FROM THE FRONT LOWER BRAKE PUCK ON THE RIGHT INBOARD BRAKE WAS EVIDENT.INSPECTOR'S ACTIVATED THE EMERGENCY BRAKING SYSTEM SEVERAL TIMES WITH NO DISCREPANCIES AND NO PREVIOUS ABNORMALITIES IN THE SYSTEM NOTED. NO IDENTIFIABLE SKID MARKS FROM THE AIRPLANE COULD BE FOUND ON THE RUNWAY OR THE OVER RUN AREA. (.4) DURING LANDING ROLL, THE AIRPLANES NORMAL BRAKING SYSTEM FAILED AS A RESULT OF HYDRAULIC FLUID LEAK(S). AT THE PILOT'S REQUEST, DEPLOYMENT OF THE DRAG CHUTE AND APPLICATION OF THE EMERGENCY BRAKING SYSTEM WAS PERFORMED BY THE FIRST OFFICER. ACCORDING TO THE FIRST OFFICER, APPLICATION OF THE EMERGENCY BRAKES CAUSED THE AIRPLANE TO YAW. THE FIRST OFFICER THEN PULLED UP ON THE EMERGENCY BRAKES HANDLE FOLLOWED BY RE-APPLICATION OF BRAKING PRESSURE. THIS ACTION TOOK PLACE SEVERAL TIMES DURING THE LANDING ROLL. GATES' LEARJET FLIGHT TRAINING MANUAL (PAGE 105) STATES, 'IN USING THE EMERGENCY BRAKE LEVER, SLOW STEADY DOWNWARD PRESSURE IS REQUIRED. EACH TIME THE LEVER IS ALLOWED TO RETURN UPWARD TO THE NORMAL POSITION, NITROGEN IS EVACUATED OVERBOARD. BRACE YOUR HAND SO YOU WILL NOT ALLOW THE LEVER TO MOVE UP AND DOWN INADVERTE NTLY ON A BUMPY RUNWAY.' THE AIRPLANE OVERRAN THE END OF THE RUNWAY AND COLLIDED WITH THE ILS BACK COURSE ANTENNAE. (-23) SEE NARRATIVE #ATL98LA078 ## The NTSB's investigation of this event (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ATL98LA078](https://openairdocs.org/ntsb/ATL98LA078), May 23, 1998: Learjet 24-B (N100DL), Orlando, FL, substantial damage. Probable cause: The first officer's failure to perform proper emergency braking procedures. From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.