# NTSB CHI84LA307: Boeing A75N1, N55070, Huntley, IL, July 22, 1984 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 22, 1984, 18:15 local (23:15 UTC) - Place: Huntley, IL - Coordinates: 42.159751, -88.419593 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.1598&lon=-88.4196&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 4 uninjured - Status: Completed - Report: Approved by Office Director - NTSB case key (mKey): 12705 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA307 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12705/pdf - Page: https://openairdocs.org/ntsb/CHI84LA307 ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water collision with object, landing - roll - comm/nav equipment,transmitter - inoperative (contributing factor) - comm/nav equipment,receiver - inoperative (contributing factor) - radio communications - not possible, pilot in command - weather condition - crosswind (contributing factor) - light condition - sunglare (contributing factor) - visual lookout - inadequate, pilot in command (cause) - visual lookout - inadequate, pilot of other aircraft (contributing factor) - remedial action - delayed, pilot of other aircraft (cause) - object - aircraft moving on ground (contributing factor) - On ground/water collision with object, landing - roll - weather condition - crosswind (contributing factor) - radio communications - performed, pilot in command - light condition - sunglare (contributing factor) - visual lookout - inadequate, pilot of other aircraft (cause) - visual lookout - inadequate, pilot in command (contributing factor) - remedial action - delayed, pilot in command (cause) - object - aircraft moving on ground (contributing factor) ## Analysis (aircraft 2) THE PLTS OF A BOEING A75, N55070, & A VULTEE BT-13, N176VR, WHERE IN FORMATION AS THEY APCHD THEIR DESTINATION. WHEN THE SAW THE ARPT, THEY SEPARATED FOR SEPARATE LANDINGS & LOST SIGHT OF EACH OTHER. BEFORE LANDING, BOTH PLTS FLEW OVER THE ARPT & NOTED THE WIND WAS NEARLY A 90 DEG X-WIND. THERE WAS NO UNICOM AT THE PVT STRIP. THE BT-13 PLT MADE RADIO CALLS IN THE PATTERN ON 122.9, BUT THE RADIO IN THE A75 WAS INOP. SUBSEQUENTLY, THE PLTS LANDED IN OPPOSITE DIRECTIONS. THE BT-13 PLT LANDED ON RWY 13. HE SAW THE A75 IN A LEFT PATTERN FOR RWY 31, BUT AT 1ST, HE THOUGHT THE A75 PLT WAS GOING TO MAKE A LOW PASS. WHEN THE A75 CONTINUED & DROPPED BELOW HIS LINE OF VISION, HE REALIZED IT WAS GOING TO LAND. HE TURNED RIGHT TO DEPART THE RWY, BUT THE LEFT WING OF EACH ACFT HIT THE OTHER. THE A75 PLT SAID THAT BECAUSE HE WAS LANDING TOWARD THE SUN & WAS LOOKING AT THE WIND SOCK, HE DID NOT SEE THE BT-13 UNTIL APRX 1 SECOND BEFORE THE IMPACT. THE SEGMENTED CIRCLE ON THE ARPT INDICATED THAT A RIGHT PATTERN SHOULD BE USED FOR RWY 31. ## Analysis (aircraft 1) THE PLTS OF A BOEING A75, N55070, & A VULTEE BT-13, N176VR, WHERE IN FORMATION AS THEY APCHD THEIR DESTINATION. WHEN THE SAW THE ARPT, THEY SEPARATED FOR SEPARATE LANDINGS & LOST SIGHT OF EACH OTHER. BEFORE LANDING, BOTH FLTS FLEW OVER THE ARPT & NOTED THE WIND WAS NEARLY A 90 DEG X-WIND. THERE WS NO UNICOM AT THE PVT STRIP. THE BT-13 PLT MADE RADIO CALLS IN THE PATTERN ON 122.9, BUT THE RADIO IN THE A75 WAS INOP. SUBSEQUENTLY, THE PLTS LANDED IN OPPOSITE DIRECTIONS. THE BT-13 PLT LANDED ON RWY 13. HE SAW THE A75 IN A LEFT PATTERN FOR RWY 31, BUT AT 1ST, HE THOUGHT THE A75 PLT WAS GOING TO MAKE A LOW PASS. WHEN THE A75 CONTINUED & DROPPED BELOW HIS LINE OF VISION. HE REALIZED IT WAS GOING TO LAND. HE TURNED RIGHT TO DEPART THE RWY, BUT THE LEFT WING OF EACH ACFT HIT THE OTHER. THE A75 PLT SAID THAT BECAUSE HE WAS LANDING TOWARD THE SUN & WAS LOOKING AT THE WIND SOCK, HE DID NOT SEE THE BT-13 UNTIL APRX 1 SECOND BEFORE THE IMPACT. THE SEGMENTED CIRCLE ON THE ARPT INDICATED THAT A RIGHT PATTERN SHOULD BE USED FOR RWY 31. ## Aircraft 1 - Registration: N55070 (not matched to a registry record) - Reported make and model: BOEING A75N1 - Category: Airplane - Serial number: 75-1486 - Airframe hours: 5374 - Engines: LYCOMING R-680-E3B 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Thomas J. Forys - Airworthiness certificate: Special, Restricted (Special) - Last inspection: 100 hour, June 10, 1984, 8 hours before - Departed: 0C0, HARVARD, IL - Airport: C49, Landings, runway 31, 3,150 × 50 ft, asphalt ## Aircraft 2 - Registration: [N176VR](https://openairdocs.org/deregistered/N176VR-2013-01-31), registration cancelled 2013-01-31, S/N 7174, built 1942 (OpenAirDocs) - Reported make and model: VULTEE BT-13 - Registry model: [Consolidated Vultee BT-13A](https://openairdocs.org/model/consolidated-vultee-bt-13a) (registry code 2420224) (OpenAirDocs) - Category: Airplane - Serial number: 7174 - Airframe hours: 1700 - Engines: P&W R-985 450 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Philip Van Reeth, Sr. - Airworthiness certificate: Standard, Normal - Departed: 0C0, HARVARD, IL - Airport: C49, Landings, runway 13, 3,150 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot, aircraft N55070; age 54; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: rear; flight hours: 1,805 total, 272 in this make and model, 1,785 as pilot in command, 8 in the last 90 days, 1 in the last 24 hours - Pilot, aircraft N176VR; age 39; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 1,210 total, 415 in this make and model, 1,100 as pilot in command, 10 in the last 90 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 6 knots - Visibility: 5 statute miles - Lowest ceiling: 25,000 ft broken - Temperature: 86 °F, dew point 72 °F - Altimeter: 30.00 inHg - Observed at: DPA, 16 nm away ## FAA reports on this event (2) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19840722061641A](https://openairdocs.org/incident/19840722061641A), Jul 22, 1984: Boeing A75N1, Huntley, IL, Substantial damage. Made downwind landing and struck N176VR that had landed in opposit direction. Both tail draggers vision limited. - [Accident 19840722119342A](https://openairdocs.org/incident/19840722119342A), Jul 22, 1984: Cvac BT13A, Huntley, IL, Substantial damage. Was struck on the landing rollout by N55070 that was landing in opposite direction. Both aircraft vision limited. 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. --- 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.