Pilot Actions a Mystery in Santa Ana Air Crash : Investigation: He may not have known he was following in the wake of a Boeing 757. Five on board died.

The NTSB's Mucho said there was another incident this year in which a Boeing 737 following a 757 into Denver apparently was turned on its side while encountering the wake of the larger jet.

According to records supplied Friday by the NTSB, the safety agency in the 1970s recommended to the FAA that it have controllers issue special warnings about turbulence or develop methods to maintain adequate separation between aircraft, but the FAA argued that no regulation changes were necessary.

Among those killed in Wednesday's crash were West, 37, who grew up with Snyder, In-N-Out's president; Barkin, 46, the pilot; John O. McDaniel, 49, the co-pilot, and Richard Sims, 47, another friend of Snyder's and a consultant to the company. The company, which issued no statements on the day of the crash or on Thursday, said Friday that it might have some comment over the weekend.

A parade of gawkers wandered past the crash site, which still smelled of jet fuel, near the Santa Ana Auto Mall on Friday. One woman left a poinsettia plant at the scene.

The wreckage was removed Thursday, but the visitors scanned the ground for scraps of evidence. An employee at the nearby BMW dealership found a curtain rod that was apparently flung from the plane on impact.

Par Akrazi, 26, said employees at the dealership were also counseled Friday evening by a therapist from the Red Cross because several had witnessed the accident and saw body parts scattered around the area.

Akrazi said he had nightmares of the scene because he raced out to douse a fire that was burning on a corpse in the street. "Last night, I woke up at 2:30 a.m.," he said. "I keep remembering that guy."

A friend of McDaniel, one of the dead pilots, also inspected the scene Friday. Pete Hambrick of Huntington Beach said he and McDaniel once co-owned a sailboat in Long Beach that they used to race.

McDaniel loved flying and was a former supertanker ship captain.

Friends of Richard Sims, one of the passengers who died in the crash, said he was the proprietor of a Placentia public relations and marketing firm that bears his name, and was also somewhat of an authority on baby boomers and religion who had appeared on ABC-TV's "Nightline," on the Cable News Network, and the "700 Club."

Sims was also a close friend of In-N-Out President Snyder, who had chartered the aircraft, and produced a monthly video news program called "Burger TV" for the 2,500 In-N-Out Burger employees.

Sims divided his time between his public relations and marketing firm and his passion for creating marketing videos for churches.

"He was just a really good friend, sort of a teacher at times and an adviser at others," said Bill Scherer, 27, who worked closely with Sims for four years. "I've never known anyone like him and probably never will."

A native of Fort Worth, Tex., and a former minister ordained by the Evangelical Church Alliance, an inter-denominational group, Sims traveled the country with the Campus Crusade for Christ in the 1960s and '70s.

Longtime friend and former business partner Don Lomangino, 52, of Broken Arrow, Okla., said Sims believed traditional religion alienated people of his generation.

Dedicated to reaching his generation, Sims started his own church in the 1980s called Matthew's Party, an allusion to a dinner hosted for Jesus by the writer of the New Testament Gospel. Described as a "church for people who don't like church," members met at Racquetball World in Fullerton, Lomangino said.

"People would come in their workout clothes and sit down, and he would give a dramatization or a talk," he said.

Linking religion and marketing, he made a video seminar for churches in 1992 called "A Generation on the Doorstep: Meeting the Spiritual Needs of Baby Boomers and Their Families." The video explained how churches could woo more baby boomers to their doors.

Lomangino said Sims had plans to host his own religious talk show on cable TV.

"He really felt pressed or led to do his own program," Lomangino said. "He really felt like this was something God wanted him to do."

Lomangino, who frequently visits California for business, said he met with Sims for dinner on a weekly basis.

"I haven't met anybody that didn't like Jack . . . made you laugh . . . He just had a tremendous sense of humor," Lomangino said.

Sims is survived by his wife, Helen, and two children, Amy, 20, and Jon, 17.

Joyce Tewthers, a close friend who on Friday was at the family residence in Placentia answering phones, said, "I think they are still in a state of disbelief that this happened. They're doing OK, but I still think they can't believe it happened. It's just shocking."

Forest Lawn Mortuary in Covina said it has tentatively scheduled a memorial service for Snyder on Monday morning. But an official at the mortuary said details of the service have not been concluded.

A service is also expected to be held for Sims at the Neels Brea Mortuary, but it has not been scheduled. A memorial service is scheduled for West at 10 a.m. Wednesday at the Rose Hills Mortuary in Whittier.

McDaniel will be cremated and his remains scattered at sea next week. A memorial service is scheduled for noon Monday at the Church of Fathers at Forest Lawn in Cypress.

Funeral arrangements for Barkin were pending on Friday.

Times staff writers Jennifer Brundin, Mary Lou Pickel and Richard O'Reilly contributed to this story.