THE PLT DEPARTED GAI; MD; ARPT WITH 1 PAX TO DO SOME LOW ALT RIVER FLYING ALONG THE POTOMAC RIVER AT 700 FT ABOVE THE WATER TO THE MOUNTAINS. AS HE CONTINUED UPSTREAM ENGROSSED IN THE SCENERY NEAR HARPERS FERRY; HE ENCOUNTERED VENTURI WINDS FROM THE MOUNTAINS THAT TIPPED HIM TO ABOUT 75 DEGS OF BANK. IN THE PROCESS OF RECOVERING IN THE TURB HE MAY HAVE BUSTED FAA ALT REGS.
Synopsis
THE PLT DEPARTED GAI; MD; ARPT WITH 1 PAX TO DO SOME LOW ALT RIVER FLYING ALONG THE POTOMAC RIVER AT 700 FT ABOVE THE WATER TO THE MOUNTAINS. AS HE CONTINUED UPSTREAM ENGROSSED IN THE SCENERY NEAR HARPERS FERRY; HE ENCOUNTERED VENTURI WINDS FROM THE MOUNTAINS THAT TIPPED HIM TO ABOUT 75 DEGS OF BANK. IN THE PROCESS OF RECOVERING IN THE TURB HE MAY HAVE BUSTED FAA ALT REGS.
Narrative
AS A LOW TIME PVT PLT; I HAD BEGUN TAKING TAILDRAGGER LESSONS IN A C170. MY INSTRUCTOR HAD HAD ME FLY LOW AND SLOW OVER POTOMAC/MONOCACY RIVERS FOLLOWING THE CHANNEL TO IMPROVE SLOW FLT ABILITY. THIS PROVED SEDUCTIVE IN THAT I SUBSEQUENTLY FOLLOWED THE SAME RTE WITH PAX TO FDK AS IT WAS LOVELY SIGHTSEEING. ON THE FLT IN QUESTION; DEPARTED GAI WITH 1 PAX INTENDING TO DUPLICATE EARLIER FLTS. HOWEVER; AT THE CONFLUENCE OF POTOMAC AND MONOCACY RIVERS; OFFERED PAX THE OPTION OF CONTINUING UP THE POTOMAC TO THE MOUNTAINS. I HAD NEVER FLOWN THIS RTE BEFORE. ON THE DAY OF THE FLT; THERE WAS SLIGHT TURB AND A WIND OF APPROX 10 KTS AT GND LEVEL. AS WE CONTINUED UPSTREAM; AND APCHED THE TOWN OF HARPERS FERRY; I BECAME ENTRANCED WITH THE SCENERY AND DID NOT GIVE A THOUGHT TO THE WIND VENTURI EFFECT PRESENT IN THE GORGE AHEAD. SOON WE WERE IN THE MOUTH OF THE GORGE AT HARPERS FERRY AND HAD TO TURN L OR R; LEST WE FLY INTO MAIN STREET. I BANKED R; THINKING IT WAS WAY PAST TIME TO GET OUT OF WHAT WAS BECOMING A TENUOUS SIT. AT THAT TIME THE WIND LIFTED MY L WING AND ROTATED THE ACFT TO A BANK ANGLE OF FROM 60-75 DEGS. I FOUGHT FOR CTL AND AVOIDED A STALL/SPIN; BUT NOT BY MUCH. NEXT MIN IS UNCLR -- FULL PWR AND ATTEMPT TO REGAIN AIRSPD AND A SURVIVABLE ALT. I MAY WELL HAVE BUSTED MINIMUM ALT REGS; BUT I HAVE NO IDEA JUST WHAT I FLEW OVER; NOR HOW HIGH I WAS AT THE TIME. IN RETROSPECT; I FEEL I LOST CTL OF THE SIT JUST BEFORE I ENTERED THE MOST DANGEROUS PORTION OF THE FLT; DUE TO MY ABSORPTION IN THE SCENERY. THE ONLY REASON I AM STILL ALIVE AT THIS MOMENT IS THE REACTIONS ENGENDERED BY LOTS OF STALL/SPIN AVOIDANCE TRAINING; AND MOSTLY; GOOD LUCK. SOME MOUNTAIN TRAINING; WITH EMPHASIS ON OVERFLYING POTENTIAL DANGER SPOTS AT A DECENT ALT BEFORE COMMITTING TO LOW FLT; WOULD HAVE KEPT ME OUT OF TROUBLE.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.